diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
index 555b956ef1f..493154a15e3 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
@@ -578,7 +578,7 @@ private inline fun StringBuilder.appendDeclarationNameToFqName(
     options: DumpIrTreeOptions,
     fallback: () -> Unit
 ) {
-    if (declaration.origin != IrDeclarationOrigin.FILE_CLASS || options.printFacadeClassInFqNames) {
+    if (!declaration.isFileClass || options.printFacadeClassInFqNames) {
         append('.')
         if (declaration is IrDeclarationWithName) {
             append(declaration.name)
diff --git a/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.fir.ir.txt b/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.fir.ir.txt
index 89cf0e99724..e2e58d0aec3 100644
--- a/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.fir.ir.txt
+++ b/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.fir.ir.txt
@@ -49,16 +49,16 @@ FILE fqName:<root> fileName:/test.kt
       VAR name:clazz type:kotlin.reflect.KClass<<root>.Foo> [val]
         CLASS_REFERENCE 'CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<<root>.Foo>
       VAR name:parameterAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KParameter' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KParameter origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KParameter origin=null
                 <T>: kotlin.reflect.KParameter
                 $receiver: CALL 'public abstract fun <get-parameters> (): kotlin.collections.List<kotlin.reflect.KParameter> declared in kotlin.reflect.KFunction' type=kotlin.collections.List<kotlin.reflect.KParameter> origin=GET_PROPERTY
-                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
+                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
                     <T>: kotlin.reflect.KFunction<<root>.Foo>
                     $receiver: CALL 'public abstract fun <get-constructors> (): kotlin.collections.Collection<kotlin.reflect.KFunction<T of kotlin.reflect.KClass>> declared in kotlin.reflect.KClass' type=kotlin.collections.Collection<kotlin.reflect.KFunction<<root>.Foo>> origin=GET_PROPERTY
                       $this: GET_VAR 'val clazz: kotlin.reflect.KClass<<root>.Foo> declared in <root>.box' type=kotlin.reflect.KClass<<root>.Foo> origin=null
@@ -83,9 +83,9 @@ FILE fqName:<root> fileName:/test.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:fieldAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.ArraysKt.map, R of kotlin.collections.ArraysKt.map>): kotlin.collections.List<R of kotlin.collections.ArraysKt.map> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: @[FlexibleNullability] kotlin.Annotation?
             <R>: kotlin.String
             $receiver: TYPE_OP type=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?> origin=IMPLICIT_NOTNULL typeOperand=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>
@@ -121,7 +121,7 @@ FILE fqName:<root> fileName:/test.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="NoTarget"
@@ -136,7 +136,7 @@ FILE fqName:<root> fileName:/test.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 element: CONST String type=kotlin.String value="FieldOnly"
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
diff --git a/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.ir.txt b/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.ir.txt
index 76f058217c1..84086e36d60 100644
--- a/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.ir.txt
+++ b/compiler/testData/codegen/box/annotations/javaTargetOnPrimaryCtorParameter.ir.txt
@@ -49,16 +49,16 @@ FILE fqName:<root> fileName:/test.kt
       VAR name:clazz type:kotlin.reflect.KClass<<root>.Foo> [val]
         CLASS_REFERENCE 'CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<<root>.Foo>
       VAR name:parameterAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KParameter' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KParameter origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KParameter origin=null
                 <T>: kotlin.reflect.KParameter
                 $receiver: CALL 'public abstract fun <get-parameters> (): kotlin.collections.List<kotlin.reflect.KParameter> declared in kotlin.reflect.KFunction' type=kotlin.collections.List<kotlin.reflect.KParameter> origin=GET_PROPERTY
-                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
+                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
                     <T>: kotlin.reflect.KFunction<<root>.Foo>
                     $receiver: CALL 'public abstract fun <get-constructors> (): kotlin.collections.Collection<kotlin.reflect.KFunction<T of kotlin.reflect.KClass>> declared in kotlin.reflect.KClass' type=kotlin.collections.Collection<kotlin.reflect.KFunction<<root>.Foo>> origin=GET_PROPERTY
                       $this: GET_VAR 'val clazz: kotlin.reflect.KClass<<root>.Foo> declared in <root>.box' type=kotlin.reflect.KClass<<root>.Foo> origin=null
@@ -83,9 +83,9 @@ FILE fqName:<root> fileName:/test.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:fieldAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.ArraysKt.map, R of kotlin.collections.ArraysKt.map>): kotlin.collections.List<R of kotlin.collections.ArraysKt.map> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: @[FlexibleNullability] kotlin.Annotation?
             <R>: kotlin.String
             $receiver: TYPE_OP type=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?> origin=IMPLICIT_NOTNULL typeOperand=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>
@@ -121,7 +121,7 @@ FILE fqName:<root> fileName:/test.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="NoTarget"
@@ -136,7 +136,7 @@ FILE fqName:<root> fileName:/test.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 element: CONST String type=kotlin.String value="FieldOnly"
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
diff --git a/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.fir.ir.txt b/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.fir.ir.txt
index 227a3c337ef..8eee5eb2490 100644
--- a/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.fir.ir.txt
+++ b/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.fir.ir.txt
@@ -176,16 +176,16 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
       VAR name:clazz type:kotlin.reflect.KClass<<root>.Foo> [val]
         CLASS_REFERENCE 'CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<<root>.Foo>
       VAR name:parameterAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KParameter' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KParameter origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KParameter origin=null
                 <T>: kotlin.reflect.KParameter
                 $receiver: CALL 'public abstract fun <get-parameters> (): kotlin.collections.List<kotlin.reflect.KParameter> declared in kotlin.reflect.KFunction' type=kotlin.collections.List<kotlin.reflect.KParameter> origin=GET_PROPERTY
-                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
+                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
                     <T>: kotlin.reflect.KFunction<<root>.Foo>
                     $receiver: CALL 'public abstract fun <get-constructors> (): kotlin.collections.Collection<kotlin.reflect.KFunction<T of kotlin.reflect.KClass>> declared in kotlin.reflect.KClass' type=kotlin.collections.Collection<kotlin.reflect.KFunction<<root>.Foo>> origin=GET_PROPERTY
                       $this: GET_VAR 'val clazz: kotlin.reflect.KClass<<root>.Foo> declared in <root>.box' type=kotlin.reflect.KClass<<root>.Foo> origin=null
@@ -210,13 +210,13 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:propertyAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KProperty1' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KProperty1<<root>.Foo, *> origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KProperty1<<root>.Foo, *> origin=null
                 <T>: kotlin.reflect.KProperty1<<root>.Foo, *>
                 $receiver: CALL 'public final fun <get-declaredMemberProperties> <T> (): kotlin.collections.Collection<kotlin.reflect.KProperty1<T of kotlin.reflect.full.<get-declaredMemberProperties>, *>> declared in kotlin.reflect.full' type=kotlin.collections.Collection<kotlin.reflect.KProperty1<<root>.Foo, *>> origin=GET_PROPERTY
                   <T>: <root>.Foo
@@ -242,9 +242,9 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_1: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:fieldAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.ArraysKt.map, R of kotlin.collections.ArraysKt.map>): kotlin.collections.List<R of kotlin.collections.ArraysKt.map> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: @[FlexibleNullability] kotlin.Annotation?
             <R>: kotlin.String
             $receiver: TYPE_OP type=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?> origin=IMPLICIT_NOTNULL typeOperand=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>
@@ -280,7 +280,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="NoTarget"
@@ -289,7 +289,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Parameters:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       WHEN type=kotlin.Unit origin=IF
@@ -297,7 +297,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val propertyAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="PropertyOnly"
@@ -305,7 +305,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Property:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val propertyAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       WHEN type=kotlin.Unit origin=IF
@@ -313,13 +313,13 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 element: CONST String type=kotlin.String value="FieldOnly"
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Field:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
diff --git a/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.ir.txt b/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.ir.txt
index 35262ce1997..a3dca4dd8a5 100644
--- a/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.ir.txt
+++ b/compiler/testData/codegen/box/annotations/targetOnPrimaryCtorParameter.ir.txt
@@ -176,16 +176,16 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
       VAR name:clazz type:kotlin.reflect.KClass<<root>.Foo> [val]
         CLASS_REFERENCE 'CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<<root>.Foo>
       VAR name:parameterAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KParameter' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KParameter origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KParameter origin=null
                 <T>: kotlin.reflect.KParameter
                 $receiver: CALL 'public abstract fun <get-parameters> (): kotlin.collections.List<kotlin.reflect.KParameter> declared in kotlin.reflect.KFunction' type=kotlin.collections.List<kotlin.reflect.KParameter> origin=GET_PROPERTY
-                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
+                  $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KFunction<<root>.Foo> origin=null
                     <T>: kotlin.reflect.KFunction<<root>.Foo>
                     $receiver: CALL 'public abstract fun <get-constructors> (): kotlin.collections.Collection<kotlin.reflect.KFunction<T of kotlin.reflect.KClass>> declared in kotlin.reflect.KClass' type=kotlin.collections.Collection<kotlin.reflect.KFunction<<root>.Foo>> origin=GET_PROPERTY
                       $this: GET_VAR 'val clazz: kotlin.reflect.KClass<<root>.Foo> declared in <root>.box' type=kotlin.reflect.KClass<<root>.Foo> origin=null
@@ -210,13 +210,13 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:propertyAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: kotlin.Annotation
             <R>: kotlin.String
             $receiver: CALL 'public abstract fun <get-annotations> (): kotlin.collections.List<kotlin.Annotation> declared in kotlin.reflect.KProperty1' type=kotlin.collections.List<kotlin.Annotation> origin=GET_PROPERTY
-              $this: CALL 'public final fun single <T> (): T of kotlin.collections.CollectionsKt.single declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KProperty1<<root>.Foo, *> origin=null
+              $this: CALL 'public final fun single <T> (): T of kotlin.collections.single declared in kotlin.collections' type=kotlin.reflect.KProperty1<<root>.Foo, *> origin=null
                 <T>: kotlin.reflect.KProperty1<<root>.Foo, *>
                 $receiver: CALL 'public final fun <get-declaredMemberProperties> <T> (): kotlin.collections.Collection<kotlin.reflect.KProperty1<T of kotlin.reflect.full.<get-declaredMemberProperties>, *>> declared in kotlin.reflect.full' type=kotlin.collections.Collection<kotlin.reflect.KProperty1<<root>.Foo, *>> origin=GET_PROPERTY
                   <T>: <root>.Foo
@@ -242,9 +242,9 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
                           if: CONST Boolean type=kotlin.Boolean value=true
                           then: GET_VAR 'val tmp_1: kotlin.String? declared in <root>.box.<anonymous>' type=kotlin.String? origin=null
       VAR name:fieldAnnotations type:kotlin.collections.Set<kotlin.String> [val]
-        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.CollectionsKt.toSet> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+        CALL 'public final fun toSet <T> (): kotlin.collections.Set<T of kotlin.collections.toSet> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
           <T>: kotlin.String
-          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.ArraysKt.map, R of kotlin.collections.ArraysKt.map>): kotlin.collections.List<R of kotlin.collections.ArraysKt.map> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<kotlin.String> origin=null
+          $receiver: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
             <T>: @[FlexibleNullability] kotlin.Annotation?
             <R>: kotlin.String
             $receiver: TYPE_OP type=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?> origin=IMPLICIT_NOTNULL typeOperand=kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>
@@ -280,7 +280,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="NoTarget"
@@ -289,7 +289,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Parameters:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val parameterAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       WHEN type=kotlin.Unit origin=IF
@@ -297,7 +297,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val propertyAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (vararg elements: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   CONST String type=kotlin.String value="PropertyOnly"
@@ -305,7 +305,7 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Property:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val propertyAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       WHEN type=kotlin.Unit origin=IF
@@ -313,13 +313,13 @@ FILE fqName:<root> fileName:/targetOnPrimaryCtorParameter.kt
           if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
             $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
               arg0: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
-              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.SetsKt.setOf): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.String> origin=null
+              arg1: CALL 'public final fun setOf <T> (element: T of kotlin.collections.setOf): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.String> origin=null
                 <T>: kotlin.String
                 element: CONST String type=kotlin.String value="FieldOnly"
           then: RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
             CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
               $this: CONST String type=kotlin.String value="Field:"
-              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections.CollectionsKt' type=kotlin.String origin=null
+              other: CALL 'public final fun joinToString <T> (separator: kotlin.CharSequence, prefix: kotlin.CharSequence, postfix: kotlin.CharSequence, limit: kotlin.Int, truncated: kotlin.CharSequence, transform: kotlin.Function1<T of kotlin.collections.joinToString, kotlin.CharSequence>?): kotlin.String declared in kotlin.collections' type=kotlin.String origin=null
                 <T>: kotlin.String
                 $receiver: GET_VAR 'val fieldAnnotations: kotlin.collections.Set<kotlin.String> declared in <root>.box' type=kotlin.collections.Set<kotlin.String> origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
diff --git a/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.fir.ir.txt b/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.fir.ir.txt
index be2edbd72f6..a14b80e9885 100644
--- a/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.fir.ir.txt
+++ b/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.fir.ir.txt
@@ -17,9 +17,9 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
   FUN name:takeString visibility:public modality:FINAL <> (s:kotlin.String) returnType:kotlin.Unit
     VALUE_PARAMETER name:s index:0 type:kotlin.String
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.String
-        $receiver: CALL 'public final fun split (vararg delimiters: kotlin.String, ignoreCase: kotlin.Boolean, limit: kotlin.Int): kotlin.collections.List<kotlin.String> declared in kotlin.text.StringsKt' type=kotlin.collections.List<kotlin.String> origin=null
+        $receiver: CALL 'public final fun split (vararg delimiters: kotlin.String, ignoreCase: kotlin.Boolean, limit: kotlin.Int): kotlin.collections.List<kotlin.String> declared in kotlin.text' type=kotlin.collections.List<kotlin.String> origin=null
           $receiver: GET_VAR 's: kotlin.String declared in <root>.takeString' type=kotlin.String origin=null
           delimiters: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
             CONST String type=kotlin.String value="\n"
@@ -32,7 +32,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                   $this: CALL 'public final fun <get-result> (): kotlin.Int declared in <root>' type=kotlin.Int origin=GET_PROPERTY
                   other: BLOCK type=kotlin.Int origin=ELVIS
                     VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:kotlin.Int? [val]
-                      CALL 'public final fun toIntOrNull (): kotlin.Int? declared in kotlin.text.StringsKt' type=kotlin.Int? origin=null
+                      CALL 'public final fun toIntOrNull (): kotlin.Int? declared in kotlin.text' type=kotlin.Int? origin=null
                         $receiver: GET_VAR 'it: kotlin.String declared in <root>.takeString.<anonymous>' type=kotlin.String origin=null
                     WHEN type=kotlin.Int origin=ELVIS
                       BRANCH
@@ -66,7 +66,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                     $this: GET_VAR 'val tmp_1: kotlin.collections.IntIterator declared in <root>.test.localFunc' type=kotlin.collections.IntIterator origin=null
                 BLOCK type=kotlin.Unit origin=null
                   VAR name:s type:kotlin.String [val]
-                    CALL 'public final fun buildString (builderAction: @[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder, kotlin.Unit>): kotlin.String declared in kotlin.text.StringsKt' type=kotlin.String origin=null
+                    CALL 'public final fun buildString (builderAction: @[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder, kotlin.Unit>): kotlin.String declared in kotlin.text' type=kotlin.String origin=null
                       builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder, kotlin.Unit> origin=LAMBDA
                         FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:java.lang.StringBuilder) returnType:kotlin.Unit
                           $receiver: VALUE_PARAMETER name:$this$buildString type:java.lang.StringBuilder
@@ -84,7 +84,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                                   VAR FOR_LOOP_VARIABLE name:j type:kotlin.Int [val]
                                     CALL 'public final fun next (): kotlin.Int declared in kotlin.collections.IntIterator' type=kotlin.Int origin=FOR_LOOP_NEXT
                                       $this: GET_VAR 'val tmp_2: kotlin.collections.IntIterator declared in <root>.test.localFunc.<anonymous>' type=kotlin.collections.IntIterator origin=null
-                                  CALL 'public final fun appendLine (value: kotlin.String?): java.lang.StringBuilder declared in kotlin.text.StringsKt' type=java.lang.StringBuilder origin=null
+                                  CALL 'public final fun appendLine (value: kotlin.String?): java.lang.StringBuilder declared in kotlin.text' type=java.lang.StringBuilder origin=null
                                     $receiver: GET_VAR '$this$buildString: java.lang.StringBuilder declared in <root>.test.localFunc.<anonymous>' type=java.lang.StringBuilder origin=null
                                     value: STRING_CONCATENATION type=kotlin.String
                                       CALL 'public final fun times (other: kotlin.Int): kotlin.Int declared in kotlin.Int' type=kotlin.Int origin=MUL
diff --git a/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.ir.txt b/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.ir.txt
index 8b83b7b3ed7..0d5f21caff1 100644
--- a/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.ir.txt
+++ b/compiler/testData/codegen/box/fir/noSymbolForIntRangeIterator.ir.txt
@@ -17,9 +17,9 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
   FUN name:takeString visibility:public modality:FINAL <> (s:kotlin.String) returnType:kotlin.Unit
     VALUE_PARAMETER name:s index:0 type:kotlin.String
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.String
-        $receiver: CALL 'public final fun split (vararg delimiters: kotlin.String, ignoreCase: kotlin.Boolean, limit: kotlin.Int): kotlin.collections.List<kotlin.String> declared in kotlin.text.StringsKt' type=kotlin.collections.List<kotlin.String> origin=null
+        $receiver: CALL 'public final fun split (vararg delimiters: kotlin.String, ignoreCase: kotlin.Boolean, limit: kotlin.Int): kotlin.collections.List<kotlin.String> declared in kotlin.text' type=kotlin.collections.List<kotlin.String> origin=null
           $receiver: GET_VAR 's: kotlin.String declared in <root>.takeString' type=kotlin.String origin=null
           delimiters: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
             CONST String type=kotlin.String value="\n"
@@ -33,7 +33,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                     $this: CALL 'public final fun <get-result> (): kotlin.Int declared in <root>' type=kotlin.Int origin=PLUSEQ
                     other: BLOCK type=kotlin.Int origin=ELVIS
                       VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:kotlin.Int? [val]
-                        CALL 'public final fun toIntOrNull (): kotlin.Int? declared in kotlin.text.StringsKt' type=kotlin.Int? origin=null
+                        CALL 'public final fun toIntOrNull (): kotlin.Int? declared in kotlin.text' type=kotlin.Int? origin=null
                           $receiver: GET_VAR 'it: kotlin.String declared in <root>.takeString.<anonymous>' type=kotlin.String origin=null
                       WHEN type=kotlin.Int origin=null
                         BRANCH
@@ -67,7 +67,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                     $this: GET_VAR 'val tmp_1: kotlin.collections.IntIterator declared in <root>.test.localFunc' type=kotlin.collections.IntIterator origin=null
                 BLOCK type=kotlin.Unit origin=null
                   VAR name:s type:kotlin.String [val]
-                    CALL 'public final fun buildString (builderAction: @[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder{ kotlin.text.StringBuilder }, kotlin.Unit>): kotlin.String declared in kotlin.text.StringsKt' type=kotlin.String origin=null
+                    CALL 'public final fun buildString (builderAction: @[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder{ kotlin.text.StringBuilder }, kotlin.Unit>): kotlin.String declared in kotlin.text' type=kotlin.String origin=null
                       builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<java.lang.StringBuilder{ kotlin.text.StringBuilder }, kotlin.Unit> origin=LAMBDA
                         FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:java.lang.StringBuilder{ kotlin.text.StringBuilder }) returnType:kotlin.Unit
                           $receiver: VALUE_PARAMETER name:$this$buildString type:java.lang.StringBuilder{ kotlin.text.StringBuilder }
@@ -87,7 +87,7 @@ FILE fqName:<root> fileName:/noSymbolForIntRangeIterator.kt
                                       $this: GET_VAR 'val tmp_2: kotlin.collections.IntIterator declared in <root>.test.localFunc.<anonymous>' type=kotlin.collections.IntIterator origin=null
                                   BLOCK type=kotlin.Unit origin=null
                                     TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-                                      CALL 'public final fun appendLine (value: kotlin.String?): java.lang.StringBuilder{ kotlin.text.StringBuilder } declared in kotlin.text.StringsKt' type=java.lang.StringBuilder{ kotlin.text.StringBuilder } origin=null
+                                      CALL 'public final fun appendLine (value: kotlin.String?): java.lang.StringBuilder{ kotlin.text.StringBuilder } declared in kotlin.text' type=java.lang.StringBuilder{ kotlin.text.StringBuilder } origin=null
                                         $receiver: GET_VAR '$this$buildString: java.lang.StringBuilder{ kotlin.text.StringBuilder } declared in <root>.test.localFunc.<anonymous>' type=java.lang.StringBuilder{ kotlin.text.StringBuilder } origin=null
                                         value: STRING_CONCATENATION type=kotlin.String
                                           CALL 'public final fun times (other: kotlin.Int): kotlin.Int declared in kotlin.Int' type=kotlin.Int origin=MUL
diff --git a/compiler/testData/codegen/box/smartCasts/kt44814.fir.ir.txt b/compiler/testData/codegen/box/smartCasts/kt44814.fir.ir.txt
index 7e23c3c3adf..db886570d72 100644
--- a/compiler/testData/codegen/box/smartCasts/kt44814.fir.ir.txt
+++ b/compiler/testData/codegen/box/smartCasts/kt44814.fir.ir.txt
@@ -205,7 +205,7 @@ FILE fqName:<root> fileName:/kt44814.kt
     CONSTRUCTOR visibility:public <> (_children:kotlin.collections.List<<root>.LighterASTNode?>) returnType:<root>.LighterASTNode [primary]
       VALUE_PARAMETER name:_children index:0 type:kotlin.collections.List<<root>.LighterASTNode?>
         EXPRESSION_BODY
-          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.emptyList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
+          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.emptyList> declared in kotlin.collections' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
             <T>: <root>.LighterASTNode?
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () declared in kotlin.Any'
@@ -521,7 +521,7 @@ FILE fqName:<root> fileName:/kt44814.kt
     PROPERTY name:modifiers visibility:public modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:modifiers type:kotlin.collections.List<<root>.FirModifier<*>> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.emptyList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.FirModifier<*>> origin=null
+          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.emptyList> declared in kotlin.collections' type=kotlin.collections.List<<root>.FirModifier<*>> origin=null
             <T>: <root>.FirModifier<*>
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-modifiers> visibility:public modality:FINAL <> ($this:<root>.FirModifierList) returnType:kotlin.collections.List<<root>.FirModifier<*>>
         correspondingProperty: PROPERTY name:modifiers visibility:public modality:FINAL [val]
@@ -669,7 +669,7 @@ FILE fqName:<root> fileName:/kt44814.kt
                         then: CONST Null type=kotlin.Nothing? value=null
                       BRANCH
                         if: CONST Boolean type=kotlin.Boolean value=true
-                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=<root>.FirModifierList.FirPsiModifierList origin=null
+                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=<root>.FirModifierList.FirPsiModifierList origin=null
                           <T>: <root>.KtModifierList
                           <R>: <root>.FirModifierList.FirPsiModifierList
                           $receiver: GET_VAR 'val tmp_1: <root>.KtModifierList? declared in <root>.FirModifierList.Companion.getModifierList' type=<root>.KtModifierList? origin=null
@@ -687,7 +687,7 @@ FILE fqName:<root> fileName:/kt44814.kt
                     VAR name:modifierListNode type:<root>.LighterASTNode [val]
                       BLOCK type=<root>.LighterASTNode origin=ELVIS
                         VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:<root>.LighterASTNode? [val]
-                          CALL 'public final fun find <T> (predicate: kotlin.Function1<T of kotlin.collections.CollectionsKt.find, kotlin.Boolean>): T of kotlin.collections.CollectionsKt.find? declared in kotlin.collections.CollectionsKt' type=<root>.LighterASTNode? origin=null
+                          CALL 'public final fun find <T> (predicate: kotlin.Function1<T of kotlin.collections.find, kotlin.Boolean>): T of kotlin.collections.find? declared in kotlin.collections' type=<root>.LighterASTNode? origin=null
                             <T>: <root>.LighterASTNode?
                             $receiver: CALL 'public final fun getChildren (treeStructure: <root>.FlyweightCapableTreeStructure): kotlin.collections.List<<root>.LighterASTNode?> declared in <root>.LighterASTNode' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
                               $this: CALL 'public open fun <get-lighterASTNode> (): <root>.LighterASTNode declared in <root>.FirLightSourceElement' type=<root>.LighterASTNode origin=GET_PROPERTY
@@ -741,7 +741,7 @@ FILE fqName:<root> fileName:/kt44814.kt
           VAR name:sourceElement type:<root>.FirSourceElement? [val]
             CONSTRUCTOR_CALL 'public constructor <init> (lighterASTNode: <root>.LighterASTNode, treeStructure: <root>.FlyweightCapableTreeStructure) declared in <root>.FirLightSourceElement' type=<root>.FirLightSourceElement origin=null
               lighterASTNode: CONSTRUCTOR_CALL 'public constructor <init> (_children: kotlin.collections.List<<root>.LighterASTNode?>) declared in <root>.LighterASTNode' type=<root>.LighterASTNode origin=null
-                _children: CALL 'public final fun listOf <T> (element: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.LighterASTNode> origin=null
+                _children: CALL 'public final fun listOf <T> (element: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<<root>.LighterASTNode> origin=null
                   <T>: <root>.LighterASTNode
                   element: CONSTRUCTOR_CALL 'public constructor <init> (_children: kotlin.collections.List<<root>.LighterASTNode?>) declared in <root>.LighterASTNode' type=<root>.LighterASTNode origin=null
               treeStructure: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.FlyweightCapableTreeStructure' type=<root>.FlyweightCapableTreeStructure origin=null
diff --git a/compiler/testData/codegen/box/smartCasts/kt44814.ir.txt b/compiler/testData/codegen/box/smartCasts/kt44814.ir.txt
index 79862759d91..6ea3006a790 100644
--- a/compiler/testData/codegen/box/smartCasts/kt44814.ir.txt
+++ b/compiler/testData/codegen/box/smartCasts/kt44814.ir.txt
@@ -205,7 +205,7 @@ FILE fqName:<root> fileName:/kt44814.kt
     CONSTRUCTOR visibility:public <> (_children:kotlin.collections.List<<root>.LighterASTNode?>) returnType:<root>.LighterASTNode [primary]
       VALUE_PARAMETER name:_children index:0 type:kotlin.collections.List<<root>.LighterASTNode?>
         EXPRESSION_BODY
-          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.emptyList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
+          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.emptyList> declared in kotlin.collections' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
             <T>: <root>.LighterASTNode?
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () declared in kotlin.Any'
@@ -521,7 +521,7 @@ FILE fqName:<root> fileName:/kt44814.kt
     PROPERTY name:modifiers visibility:public modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:modifiers type:kotlin.collections.List<<root>.FirModifier<*>> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.emptyList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.FirModifier<*>> origin=null
+          CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.emptyList> declared in kotlin.collections' type=kotlin.collections.List<<root>.FirModifier<*>> origin=null
             <T>: <root>.FirModifier<*>
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-modifiers> visibility:public modality:FINAL <> ($this:<root>.FirModifierList) returnType:kotlin.collections.List<<root>.FirModifier<*>>
         correspondingProperty: PROPERTY name:modifiers visibility:public modality:FINAL [val]
@@ -669,7 +669,7 @@ FILE fqName:<root> fileName:/kt44814.kt
                         then: CONST Null type=kotlin.Nothing? value=null
                       BRANCH
                         if: CONST Boolean type=kotlin.Boolean value=true
-                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=<root>.FirModifierList.FirPsiModifierList origin=null
+                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=<root>.FirModifierList.FirPsiModifierList origin=null
                           <T>: <root>.KtModifierList
                           <R>: <root>.FirModifierList.FirPsiModifierList
                           $receiver: GET_VAR 'val tmp_1: <root>.KtModifierList? declared in <root>.FirModifierList.Companion.getModifierList' type=<root>.KtModifierList? origin=null
@@ -687,7 +687,7 @@ FILE fqName:<root> fileName:/kt44814.kt
                     VAR name:modifierListNode type:<root>.LighterASTNode [val]
                       BLOCK type=<root>.LighterASTNode origin=ELVIS
                         VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:<root>.LighterASTNode? [val]
-                          CALL 'public final fun find <T> (predicate: kotlin.Function1<T of kotlin.collections.CollectionsKt.find, kotlin.Boolean>): T of kotlin.collections.CollectionsKt.find? declared in kotlin.collections.CollectionsKt' type=<root>.LighterASTNode? origin=null
+                          CALL 'public final fun find <T> (predicate: kotlin.Function1<T of kotlin.collections.find, kotlin.Boolean>): T of kotlin.collections.find? declared in kotlin.collections' type=<root>.LighterASTNode? origin=null
                             <T>: <root>.LighterASTNode?
                             $receiver: CALL 'public final fun getChildren (treeStructure: <root>.FlyweightCapableTreeStructure): kotlin.collections.List<<root>.LighterASTNode?> declared in <root>.LighterASTNode' type=kotlin.collections.List<<root>.LighterASTNode?> origin=null
                               $this: CALL 'public abstract fun <get-lighterASTNode> (): <root>.LighterASTNode declared in <root>.FirSourceElement' type=<root>.LighterASTNode origin=GET_PROPERTY
@@ -738,7 +738,7 @@ FILE fqName:<root> fileName:/kt44814.kt
           VAR name:sourceElement type:<root>.FirSourceElement? [val]
             CONSTRUCTOR_CALL 'public constructor <init> (lighterASTNode: <root>.LighterASTNode, treeStructure: <root>.FlyweightCapableTreeStructure) declared in <root>.FirLightSourceElement' type=<root>.FirLightSourceElement origin=null
               lighterASTNode: CONSTRUCTOR_CALL 'public constructor <init> (_children: kotlin.collections.List<<root>.LighterASTNode?>) declared in <root>.LighterASTNode' type=<root>.LighterASTNode origin=null
-                _children: CALL 'public final fun listOf <T> (element: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.LighterASTNode> origin=null
+                _children: CALL 'public final fun listOf <T> (element: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<<root>.LighterASTNode> origin=null
                   <T>: <root>.LighterASTNode
                   element: CONSTRUCTOR_CALL 'public constructor <init> (_children: kotlin.collections.List<<root>.LighterASTNode?>) declared in <root>.LighterASTNode' type=<root>.LighterASTNode origin=null
               treeStructure: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.FlyweightCapableTreeStructure' type=<root>.FlyweightCapableTreeStructure origin=null
diff --git a/compiler/testData/ir/irText/classes/initValInLambda.ir.txt b/compiler/testData/ir/irText/classes/initValInLambda.ir.txt
index be46daccfbe..a4ee1691bdc 100644
--- a/compiler/testData/ir/irText/classes/initValInLambda.ir.txt
+++ b/compiler/testData/ir/irText/classes/initValInLambda.ir.txt
@@ -16,7 +16,7 @@ FILE fqName:<root> fileName:/initValInLambda.kt
               receiver: GET_VAR '<this>: <root>.TestInitValInLambdaCalledOnce declared in <root>.TestInitValInLambdaCalledOnce.<get-x>' type=<root>.TestInitValInLambdaCalledOnce origin=null
     ANONYMOUS_INITIALIZER isStatic=false
       BLOCK_BODY
-        CALL 'public final fun run <T, R> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.run, R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+        CALL 'public final fun run <T, R> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.run, R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Unit origin=null
           <T>: kotlin.Int
           <R>: kotlin.Unit
           $receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/classes/initValInLambda.kt b/compiler/testData/ir/irText/classes/initValInLambda.kt
index 5350f8e8b88..3aab35c3c90 100644
--- a/compiler/testData/ir/irText/classes/initValInLambda.kt
+++ b/compiler/testData/ir/irText/classes/initValInLambda.kt
@@ -1,6 +1,4 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 class TestInitValInLambdaCalledOnce {
     val x: Int
diff --git a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.ir.txt b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.ir.txt
index 7743a4a4335..117ed70cd55 100644
--- a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.ir.txt
+++ b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.ir.txt
@@ -23,7 +23,7 @@ FILE fqName:<root> fileName:/delegateFieldWithAnnotations.kt
       annotations:
         Ann
       EXPRESSION_BODY
-        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
           <T>: kotlin.Int
           initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -34,7 +34,7 @@ FILE fqName:<root> fileName:/delegateFieldWithAnnotations.kt
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [delegated,val]
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-test1> (): kotlin.Int declared in <root>'
-          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
             <T>: kotlin.Int
             $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test1$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]' type=kotlin.Lazy<kotlin.Int> origin=null
             thisRef: CONST Null type=kotlin.Nothing? value=null
diff --git a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.kt b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.kt
index 28fae1b0895..948345ab9ae 100644
--- a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // WITH_STDLIB
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.sig.kt.txt
index ee8f8eec022..542ce2bbd42 100644
--- a/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/annotations/delegateFieldWithAnnotations.sig.kt.txt
@@ -7,16 +7,16 @@ val test1: Int /* by */
     //   Mangled name (compatible mode: false): {}test1#<anonymous>#static(){}kotlin.Int
     //   Mangled name (compatible mode: true):  test1$delegate#<anonymous>#static(){}kotlin.Int
     // CHECK JS_IR NATIVE:
-    //   Mangled name: #<get-test1>(){}
-    //   Public signature: /test1.<get-test1>|-5735092642142423279[0]
+    //   Mangled name (compatible mode: false): {}test1#<anonymous>#static(){}
+    //   Mangled name (compatible mode: true):  test1$delegate#<anonymous>#static(){}
     local fun <anonymous>(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: #<get-test1>(){}kotlin.Int
   //   Public signature: /test1.<get-test1>|3978508226793108919[0]
   // CHECK JS_IR NATIVE:
-  //   Mangled name (compatible mode: false): {}test1#<anonymous>#static(){}
-  //   Mangled name (compatible mode: true):  test1$delegate#<anonymous>#static(){}
+  //   Mangled name: #<get-test1>(){}
+  //   Public signature: /test1.<get-test1>|-5735092642142423279[0]
   get(): Int
 
 // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.fir.ir.txt b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.fir.ir.txt
index 18cb491a168..5872285262c 100644
--- a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.fir.ir.txt
@@ -35,7 +35,7 @@ FILE fqName:<root> fileName:/localDelegatedPropertiesWithAnnotations.kt
     BLOCK_BODY
       LOCAL_DELEGATED_PROPERTY name:test type:kotlin.Int flags:val
         VAR PROPERTY_DELEGATE name:test$delegate type:kotlin.Lazy<kotlin.Int> [val]
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -45,7 +45,7 @@ FILE fqName:<root> fileName:/localDelegatedPropertiesWithAnnotations.kt
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test> visibility:local modality:FINAL <> () returnType:kotlin.Int
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='local final fun <get-test> (): kotlin.Int declared in <root>.foo'
-              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
                 <T>: kotlin.Int
                 $receiver: GET_VAR 'val test$delegate: kotlin.Lazy<kotlin.Int> declared in <root>.foo' type=kotlin.Lazy<kotlin.Int> origin=null
                 thisRef: CONST Null type=kotlin.Nothing? value=null
diff --git a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.ir.txt b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.ir.txt
index 1654bed5305..154fe8cd132 100644
--- a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.ir.txt
+++ b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.ir.txt
@@ -37,7 +37,7 @@ FILE fqName:<root> fileName:/localDelegatedPropertiesWithAnnotations.kt
         annotations:
           A(x = 'foo/test')
         VAR PROPERTY_DELEGATE name:test$delegate type:kotlin.Lazy<kotlin.Int> [val]
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -47,7 +47,7 @@ FILE fqName:<root> fileName:/localDelegatedPropertiesWithAnnotations.kt
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test> visibility:local modality:FINAL <> () returnType:kotlin.Int
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='local final fun <get-test> (): kotlin.Int declared in <root>.foo'
-              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
                 <T>: kotlin.Int
                 $receiver: GET_VAR 'val test$delegate: kotlin.Lazy<kotlin.Int> declared in <root>.foo' type=kotlin.Lazy<kotlin.Int> origin=null
                 thisRef: CONST Null type=kotlin.Nothing? value=null
diff --git a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.kt b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.kt
index d33132a30c4..4c9d388e654 100644
--- a/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/localDelegatedPropertiesWithAnnotations.kt
@@ -1,6 +1,4 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 annotation class A(val x: String)
 
diff --git a/compiler/testData/ir/irText/declarations/classLevelProperties.fir.ir.txt b/compiler/testData/ir/irText/declarations/classLevelProperties.fir.ir.txt
index aae57a133ed..10535245071 100644
--- a/compiler/testData/ir/irText/declarations/classLevelProperties.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/classLevelProperties.fir.ir.txt
@@ -94,7 +94,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
     PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
       FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -106,7 +106,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.C
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun <get-test7> (): kotlin.Int declared in <root>.C'
-            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
               <T>: kotlin.Int
               $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]' type=kotlin.Lazy<kotlin.Int> origin=null
                 receiver: GET_VAR '<this>: <root>.C declared in <root>.C.<get-test7>' type=<root>.C origin=null
@@ -115,7 +115,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
     PROPERTY name:test8 visibility:public modality:FINAL [delegated,var]
       FIELD PROPERTY_DELEGATE name:test8$delegate type:java.util.HashMap<kotlin.String, kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
+          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
             <K>: kotlin.String
             <V>: kotlin.Int
       FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test8> visibility:public modality:FINAL <> ($this:<root>.C) returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/declarations/classLevelProperties.ir.txt b/compiler/testData/ir/irText/declarations/classLevelProperties.ir.txt
index 0be98fb6147..6fcbce7ab05 100644
--- a/compiler/testData/ir/irText/declarations/classLevelProperties.ir.txt
+++ b/compiler/testData/ir/irText/declarations/classLevelProperties.ir.txt
@@ -94,7 +94,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
     PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
       FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -106,7 +106,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.C
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun <get-test7> (): kotlin.Int declared in <root>.C'
-            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
               <T>: kotlin.Int
               $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]' type=kotlin.Lazy<kotlin.Int> origin=null
                 receiver: GET_VAR '<this>: <root>.C declared in <root>.C.<get-test7>' type=<root>.C origin=null
@@ -115,7 +115,7 @@ FILE fqName:<root> fileName:/classLevelProperties.kt
     PROPERTY name:test8 visibility:public modality:FINAL [delegated,var]
       FIELD PROPERTY_DELEGATE name:test8$delegate type:java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> } declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
+          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
             <K>: kotlin.String
             <V>: kotlin.Int
       FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test8> visibility:public modality:FINAL <> ($this:<root>.C) returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
index 4559f460c3f..3b43341faeb 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
@@ -168,7 +168,7 @@ FILE fqName:<root> fileName:/arrayAccessCompositeOperators.kt
       VAR name:myContainer type:<root>.MyContainer [var]
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.MyContainer' type=<root>.MyContainer origin=null
           i: CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         <R>: kotlin.Unit
         receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.ir.txt
index 2c424dff7eb..81ef6f3ffc0 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.ir.txt
@@ -175,7 +175,7 @@ FILE fqName:<root> fileName:/arrayAccessCompositeOperators.kt
       VAR name:myContainer type:<root>.MyContainer [var]
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.MyContainer' type=<root>.MyContainer origin=null
           i: CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         <R>: kotlin.Unit
         receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.kt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.kt
index 3a08a0fd29c..871fa0aa30f 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 data class MyContainer(var i: Int)
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.sig.kt.txt
index dd176789f9d..f225dfd9cc9 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.sig.kt.txt
@@ -5,6 +5,9 @@ var operationScore: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-operationScore>(){}kotlin.Int
   //   Public signature: /operationScore.<get-operationScore>|7107010356269447258[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-operationScore>(){}
+  //   Public signature: /operationScore.<get-operationScore>|6765204501149451629[0]
   get
   // CHECK:
   //   Mangled name: #<set-operationScore>(kotlin.Int){}
@@ -22,6 +25,9 @@ data class MyContainer {
     // CHECK JVM_IR:
     //   Mangled name: MyContainer#<get-i>(){}kotlin.Int
     //   Public signature: /MyContainer.i.<get-i>|-8784396159001927527[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyContainer#<get-i>(){}
+    //   Public signature: /MyContainer.i.<get-i>|6945482638966853621[0]
     get
     // CHECK:
     //   Mangled name: MyContainer#<set-i>(kotlin.Int){}
@@ -35,26 +41,41 @@ data class MyContainer {
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#component1(){}kotlin.Int
   //   Public signature: /MyContainer.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#component1(){}
+  //   Public signature: /MyContainer.component1|162597135895221648[0]
   operator fun component1(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#copy(kotlin.Int){}MyContainer
   //   Public signature: /MyContainer.copy|-2712595066263545556[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#copy(kotlin.Int){}
+  //   Public signature: /MyContainer.copy|-6971662324481626298[0]
   fun copy(i: Int): MyContainer
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /MyContainer.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#equals(kotlin.Any?){}
+  //   Public signature: /MyContainer.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#hashCode(){}kotlin.Int
   //   Public signature: /MyContainer.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#hashCode(){}
+  //   Public signature: /MyContainer.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#toString(){}kotlin.String
   //   Public signature: /MyContainer.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#toString(){}
+  //   Public signature: /MyContainer.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -62,16 +83,25 @@ data class MyContainer {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #get!kotlin.Int@MyContainer(kotlin.Int){}kotlin.Int
 //   Public signature: /get|-3979760669169671321[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #get!kotlin.Int@MyContainer(kotlin.Int){}
+//   Public signature: /get|1971890742879799630[0]
 operator fun MyContainer.get($context_receiver_0: Int, index: Int): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #inc!kotlin.Int@MyContainer(){}MyContainer
 //   Public signature: /inc|-8228731243470619532[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #inc!kotlin.Int@MyContainer(){}
+//   Public signature: /inc|-5486555486431504906[0]
 operator fun MyContainer.inc($context_receiver_0: Int): MyContainer
 
 // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
index acde81a3623..01d3c5ef1b4 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
@@ -150,7 +150,7 @@ FILE fqName:<root> fileName:/arrayAccessOperators.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: kotlin.Int
           <R>: kotlin.String
           receiver: CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.ir.txt
index a9f8d1d14cf..3ab318a5454 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.ir.txt
@@ -151,7 +151,7 @@ FILE fqName:<root> fileName:/arrayAccessOperators.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: kotlin.Int
           <R>: kotlin.String
           receiver: CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.kt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.kt
index 8cb4bcc6d70..a294191aa54 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 data class MyContainer(var s: String)
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.sig.kt.txt
index d97cf467d5e..bfb246e9374 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.sig.kt.txt
@@ -9,6 +9,9 @@ data class MyContainer {
     // CHECK JVM_IR:
     //   Mangled name: MyContainer#<get-s>(){}kotlin.String
     //   Public signature: /MyContainer.s.<get-s>|4142379646177092803[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyContainer#<get-s>(){}
+    //   Public signature: /MyContainer.s.<get-s>|-1662172381559511151[0]
     get
     // CHECK:
     //   Mangled name: MyContainer#<set-s>(kotlin.String){}
@@ -22,26 +25,41 @@ data class MyContainer {
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#component1(){}kotlin.String
   //   Public signature: /MyContainer.component1|-7481405593404337796[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#component1(){}
+  //   Public signature: /MyContainer.component1|162597135895221648[0]
   operator fun component1(): String
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#copy(kotlin.String){}MyContainer
   //   Public signature: /MyContainer.copy|-9194766205182052641[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#copy(kotlin.String){}
+  //   Public signature: /MyContainer.copy|-8298725480798151031[0]
   fun copy(s: String): MyContainer
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /MyContainer.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#equals(kotlin.Any?){}
+  //   Public signature: /MyContainer.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#hashCode(){}kotlin.Int
   //   Public signature: /MyContainer.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#hashCode(){}
+  //   Public signature: /MyContainer.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: MyContainer#toString(){}kotlin.String
   //   Public signature: /MyContainer.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyContainer#toString(){}
+  //   Public signature: /MyContainer.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -49,11 +67,17 @@ data class MyContainer {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #get!kotlin.Int@MyContainer(kotlin.Int){}kotlin.String?
 //   Public signature: /get|-262764729710480185[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #get!kotlin.Int@MyContainer(kotlin.Int){}
+//   Public signature: /get|1971890742879799630[0]
 operator fun MyContainer.get($context_receiver_0: Int, index: Int): String?
 
 // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/class.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/class.ir.txt
index 6edcfc3cee5..5fce9958982 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/class.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/class.ir.txt
@@ -65,7 +65,7 @@ FILE fqName:<root> fileName:/class.kt
     VALUE_PARAMETER name:outer index:0 type:<root>.Outer
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.Inner origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.Inner origin=null
           <T>: <root>.Outer
           <R>: <root>.Inner
           receiver: GET_VAR 'outer: <root>.Outer declared in <root>.f' type=<root>.Outer origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/class.kt b/compiler/testData/ir/irText/declarations/contextReceivers/class.kt
index 6dd2aeb6bda..e2b35d5935e 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/class.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/class.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/class.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/class.sig.kt.txt
index 9724154d081..1acfb0b4c38 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/class.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/class.sig.kt.txt
@@ -6,14 +6,20 @@ class Inner {
   //   Mangled name: Inner#<init>!Outer(kotlin.Any){}
   //   Public signature: /Inner.<init>|7428094623108856579[0]
   constructor($context_receiver_0: Outer, arg: Any) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         Inner.contextReceiverField0
   //   Mangled name computed from Descriptor: Inner{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         Inner.contextReceiverField0
+  //   Mangled name computed from Descriptor: Inner{}contextReceiverField0
   private /* final field */ val contextReceiverField0: Outer
 
   // CHECK JVM_IR:
   //   Mangled name: Inner#bar(){}kotlin.Int
   //   Public signature: /Inner.bar|-6436649210114349217[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Inner#bar(){}
+  //   Public signature: /Inner.bar|496682602797471549[0]
   fun bar(): Int
 
 }
@@ -30,6 +36,9 @@ class Outer {
     // CHECK JVM_IR:
     //   Mangled name: Outer#<get-x>(){}kotlin.Int
     //   Public signature: /Outer.x.<get-x>|4966956098150895696[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Outer#<get-x>(){}
+    //   Public signature: /Outer.x.<get-x>|1482705010654679335[0]
     get
 
   // CHECK:
@@ -45,5 +54,7 @@ class Outer {
 fun f(outer: Outer): Unit
   // CHECK JVM_IR:
   //   Mangled name: #f(Outer){}#<anonymous>#static@Outer(){}Inner
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #f(Outer){}#<anonymous>#static@Outer(){}
   local fun Outer.<anonymous>(): Inner
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
index 113ee557aa1..10d5231faad 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
@@ -251,7 +251,7 @@ FILE fqName:<root> fileName:/compoundAssignmentOperators.kt
       VAR name:result type:<root>.Result [val]
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.Result' type=<root>.Result origin=null
           i: CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         <R>: kotlin.Unit
         receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.ir.txt
index 60c3be69b4c..4bd754562fb 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.ir.txt
@@ -272,7 +272,7 @@ FILE fqName:<root> fileName:/compoundAssignmentOperators.kt
       VAR name:result type:<root>.Result [val]
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.Result' type=<root>.Result origin=null
           i: CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         <R>: kotlin.Unit
         receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.kt b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.kt
index 69bc7f5ea16..d285b463545 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 data class Result(var i: Int)
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.sig.kt.txt
index 80e896365f6..c50ae3ef41b 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.sig.kt.txt
@@ -5,6 +5,9 @@ var operationScore: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-operationScore>(){}kotlin.Int
   //   Public signature: /operationScore.<get-operationScore>|7107010356269447258[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-operationScore>(){}
+  //   Public signature: /operationScore.<get-operationScore>|6765204501149451629[0]
   get
   // CHECK:
   //   Mangled name: #<set-operationScore>(kotlin.Int){}
@@ -22,6 +25,9 @@ data class Result {
     // CHECK JVM_IR:
     //   Mangled name: Result#<get-i>(){}kotlin.Int
     //   Public signature: /Result.i.<get-i>|-8784396159001927527[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Result#<get-i>(){}
+    //   Public signature: /Result.i.<get-i>|6945482638966853621[0]
     get
     // CHECK:
     //   Mangled name: Result#<set-i>(kotlin.Int){}
@@ -35,26 +41,41 @@ data class Result {
   // CHECK JVM_IR:
   //   Mangled name: Result#component1(){}kotlin.Int
   //   Public signature: /Result.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#component1(){}
+  //   Public signature: /Result.component1|162597135895221648[0]
   operator fun component1(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Result#copy(kotlin.Int){}Result
   //   Public signature: /Result.copy|5439238034196076859[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#copy(kotlin.Int){}
+  //   Public signature: /Result.copy|-6971662324481626298[0]
   fun copy(i: Int): Result
 
   // CHECK JVM_IR:
   //   Mangled name: Result#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /Result.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#equals(kotlin.Any?){}
+  //   Public signature: /Result.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: Result#hashCode(){}kotlin.Int
   //   Public signature: /Result.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#hashCode(){}
+  //   Public signature: /Result.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Result#toString(){}kotlin.String
   //   Public signature: /Result.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#toString(){}
+  //   Public signature: /Result.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -62,11 +83,17 @@ data class Result {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #div!kotlin.Int@Result(Result){}Result
 //   Public signature: /div|4720798164978030724[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #div!kotlin.Int@Result(Result){}
+//   Public signature: /div|-6612286148996821840[0]
 operator fun Result.div($context_receiver_0: Int, other: Result): Result
 
 // CHECK:
@@ -77,6 +104,9 @@ operator fun Result.divAssign($context_receiver_0: Int, other: Result): Unit
 // CHECK JVM_IR:
 //   Mangled name: #minus!kotlin.Int@Result(Result){}Result
 //   Public signature: /minus|3968749932240310139[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #minus!kotlin.Int@Result(Result){}
+//   Public signature: /minus|7405496643337842736[0]
 operator fun Result.minus($context_receiver_0: Int, other: Result): Result
 
 // CHECK:
@@ -87,6 +117,9 @@ operator fun Result.minusAssign($context_receiver_0: Int, other: Result): Unit
 // CHECK JVM_IR:
 //   Mangled name: #plus!kotlin.Int@Result(Result){}Result
 //   Public signature: /plus|4903222358721452198[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #plus!kotlin.Int@Result(Result){}
+//   Public signature: /plus|-114755674860389360[0]
 operator fun Result.plus($context_receiver_0: Int, other: Result): Result
 
 // CHECK:
@@ -97,6 +130,9 @@ operator fun Result.plusAssign($context_receiver_0: Int, other: Result): Unit
 // CHECK JVM_IR:
 //   Mangled name: #times!kotlin.Int@Result(Result){}Result
 //   Public signature: /times|3621876074874527655[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #times!kotlin.Int@Result(Result){}
+//   Public signature: /times|690380606170453948[0]
 operator fun Result.times($context_receiver_0: Int, other: Result): Result
 
 // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.fir.ir.txt
index 8335eaa0bbb..2c09041341e 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.fir.ir.txt
@@ -135,7 +135,7 @@ FILE fqName:<root> fileName:/contextualInlineCall.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Nothing origin=null
           <T>: <root>.Context
           <R>: kotlin.Nothing
           receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.Context' type=<root>.Context origin=null
@@ -171,7 +171,7 @@ FILE fqName:<root> fileName:/contextualInlineCall.kt
                       $context_receiver_0: GET_VAR '$this$with: <root>.Context declared in <root>.box.<anonymous>' type=<root>.Context origin=null
                       i1: CONST Int type=kotlin.Int value=1
                       i2: CONST Int type=kotlin.Int value=2
-                CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+                CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                   <T>: <root>.A
                   <R>: kotlin.Unit
                   receiver: CONSTRUCTOR_CALL 'public constructor <init> (a: kotlin.Any?) declared in <root>.A' type=<root>.A origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.ir.txt
index cbb38fd00c2..d2293f924c6 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.ir.txt
@@ -135,7 +135,7 @@ FILE fqName:<root> fileName:/contextualInlineCall.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Nothing origin=null
           <T>: <root>.Context
           <R>: kotlin.Nothing
           receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.Context' type=<root>.Context origin=null
@@ -171,7 +171,7 @@ FILE fqName:<root> fileName:/contextualInlineCall.kt
                       $context_receiver_0: GET_VAR '$this$with: <root>.Context declared in <root>.box.<anonymous>' type=<root>.Context origin=null
                       i1: CONST Int type=kotlin.Int value=1
                       i2: CONST Int type=kotlin.Int value=2
-                CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+                CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                   <T>: <root>.A
                   <R>: kotlin.Unit
                   receiver: CONSTRUCTOR_CALL 'public constructor <init> (a: kotlin.Any?) declared in <root>.A' type=<root>.A origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.kt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.kt
index cb182d7dae6..d6cb032ba65 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 class Context {
     fun c() = 1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.sig.kt.txt
index e06d6e159a5..b33c5c50a70 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualInlineCall.sig.kt.txt
@@ -9,6 +9,9 @@ class A {
     // CHECK JVM_IR:
     //   Mangled name: A#<get-a>(){}kotlin.Any?
     //   Public signature: /A.a.<get-a>|-5253003527138676623[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-a>(){}
+    //   Public signature: /A.a.<get-a>|6785176174175479410[0]
     get
 
   // CHECK:
@@ -30,6 +33,9 @@ class Context {
   // CHECK JVM_IR:
   //   Mangled name: Context#c(){}kotlin.Int
   //   Public signature: /Context.c|-7090409735962961857[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Context#c(){}
+  //   Public signature: /Context.c|-2724918380551733646[0]
   fun c(): Int
 
 }
@@ -37,30 +43,48 @@ class Context {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #testInline!Context(){}kotlin.Int
 //   Public signature: /testInline|2700554304824268037[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #testInline!Context(){}
+//   Public signature: /testInline|-4531301230787846989[0]
 inline fun testInline($context_receiver_0: Context): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #testInlineWithArg!Context(kotlin.Int){}kotlin.Int
 //   Public signature: /testInlineWithArg|9204994988875814257[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #testInlineWithArg!Context(kotlin.Int){}
+//   Public signature: /testInlineWithArg|-6441098303310197415[0]
 inline fun testInlineWithArg($context_receiver_0: Context, i: Int): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #testInlineWithExtensionAndArg!Context@kotlin.Int(kotlin.Int){}kotlin.Int
 //   Public signature: /testInlineWithExtensionAndArg|-7753885706218316674[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #testInlineWithExtensionAndArg!Context@kotlin.Int(kotlin.Int){}
+//   Public signature: /testInlineWithExtensionAndArg|642168423595809182[0]
 inline fun Int.testInlineWithExtensionAndArg($context_receiver_0: Context, i: Int): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #testInlineWithExtensionAndMultipleArgs!Context@kotlin.Int(kotlin.Int;kotlin.Int){}kotlin.Int
 //   Public signature: /testInlineWithExtensionAndMultipleArgs|6839067967550411636[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #testInlineWithExtensionAndMultipleArgs!Context@kotlin.Int(kotlin.Int;kotlin.Int){}
+//   Public signature: /testInlineWithExtensionAndMultipleArgs|2396628518140949199[0]
 inline fun Int.testInlineWithExtensionAndMultipleArgs($context_receiver_0: Context, i1: Int, i2: Int): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #testInlineWithExtensionAndMultipleContextsAndArgs!Context!A@kotlin.Int(kotlin.Int;kotlin.Int){}kotlin.Int
 //   Public signature: /testInlineWithExtensionAndMultipleContextsAndArgs|4315160499148454711[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #testInlineWithExtensionAndMultipleContextsAndArgs!Context!A@kotlin.Int(kotlin.Int;kotlin.Int){}
+//   Public signature: /testInlineWithExtensionAndMultipleContextsAndArgs|-8262798201429708713[0]
 inline fun Int.testInlineWithExtensionAndMultipleContextsAndArgs($context_receiver_0: Context, $context_receiver_1: A, i1: Int, i2: Int): Int
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.ir.txt
index 22a63940743..c6f3d2d2d36 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.ir.txt
@@ -85,7 +85,7 @@ FILE fqName:<root> fileName:/contextualPrimaryConstructorWithParams.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.O
           <R>: kotlin.String
           receiver: CONSTRUCTOR_CALL 'public constructor <init> (o: kotlin.String) declared in <root>.O' type=<root>.O origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.kt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.kt
index 41e9eae596b..57bdc924e49 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.sig.kt.txt
index 06cc84256d2..88453e83cc7 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/contextualPrimaryConstructorWithParams.sig.kt.txt
@@ -10,6 +10,9 @@ class O {
     // CHECK JVM_IR:
     //   Mangled name: O#<get-o>(){}kotlin.String
     //   Public signature: /O.o.<get-o>|2606027183154875572[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: O#<get-o>(){}
+    //   Public signature: /O.o.<get-o>|-5005637647237604760[0]
     get
 
   // CHECK:
@@ -31,6 +34,9 @@ class OK {
     // CHECK JVM_IR:
     //   Mangled name: OK#<get-k>(){}kotlin.String
     //   Public signature: /OK.k.<get-k>|-8248201737917988340[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: OK#<get-k>(){}
+    //   Public signature: /OK.k.<get-k>|2619553883593572199[0]
     get
 
   // CHECK:
@@ -41,15 +47,21 @@ class OK {
     // CHECK JVM_IR:
     //   Mangled name: OK#<get-result>(){}kotlin.String
     //   Public signature: /OK.result.<get-result>|8441547134620975366[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: OK#<get-result>(){}
+    //   Public signature: /OK.result.<get-result>|7945192536455394063[0]
     get
 
   // CHECK:
   //   Mangled name: OK#<init>!O(kotlin.String){}
   //   Public signature: /OK.<init>|-804847331171011326[0]
   constructor($context_receiver_0: O, k: String) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         OK.contextReceiverField0
   //   Mangled name computed from Descriptor: OK{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         OK.contextReceiverField0
+  //   Mangled name computed from Descriptor: OK{}contextReceiverField0
   private /* final field */ val contextReceiverField0: O
 
 }
@@ -57,8 +69,13 @@ class OK {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
   // CHECK JVM_IR:
   //   Mangled name: #box(){}kotlin.String#<anonymous>#static@O(){}kotlin.String
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #box(){}#<anonymous>#static@O(){}
   local fun O.<anonymous>(): String
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.fir.ir.txt
index dd70e5d78c1..d68f162cb8f 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.fir.ir.txt
@@ -137,7 +137,7 @@ FILE fqName:<root> fileName:/delegatedPropertiesOperators.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       VAR name:result type:<root>.Result [val]
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.Result origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.Result origin=null
           <T>: kotlin.Int
           <R>: <root>.Result
           receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.ir.txt
index ddecfd5e05b..eb69f8f5736 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.ir.txt
@@ -140,7 +140,7 @@ FILE fqName:<root> fileName:/delegatedPropertiesOperators.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       VAR name:result type:<root>.Result [val]
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.Result origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.Result origin=null
           <T>: kotlin.Int
           <R>: <root>.Result
           receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.kt b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.kt
index 969048933a5..d37c596d120 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 // WITH_STDLIB
 
 import kotlin.reflect.KProperty
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.sig.kt.txt
index c24f86d4603..ed651335718 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/delegatedPropertiesOperators.sig.kt.txt
@@ -5,6 +5,9 @@ var operationScore: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-operationScore>(){}kotlin.Int
   //   Public signature: /operationScore.<get-operationScore>|7107010356269447258[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-operationScore>(){}
+  //   Public signature: /operationScore.<get-operationScore>|6765204501149451629[0]
   get
   // CHECK:
   //   Mangled name: #<set-operationScore>(kotlin.Int){}
@@ -22,6 +25,9 @@ class Delegate {
     // CHECK JVM_IR:
     //   Mangled name: Delegate#<get-delegateValue>(){}kotlin.String
     //   Public signature: /Delegate.delegateValue.<get-delegateValue>|-8802990183041924458[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Delegate#<get-delegateValue>(){}
+    //   Public signature: /Delegate.delegateValue.<get-delegateValue>|442512873020605275[0]
     get
     // CHECK:
     //   Mangled name: Delegate#<set-delegateValue>(kotlin.String){}
@@ -36,6 +42,9 @@ class Delegate {
   // CHECK JVM_IR:
   //   Mangled name: Delegate#getValue!kotlin.Int(kotlin.Any?;kotlin.reflect.KProperty<*>){}kotlin.String
   //   Public signature: /Delegate.getValue|-7764345795816801347[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Delegate#getValue!kotlin.Int(kotlin.Any?;kotlin.reflect.KProperty<*>){}
+  //   Public signature: /Delegate.getValue|-415138418502969483[0]
   operator fun getValue($context_receiver_0: Int, thisRef: Any?, property: KProperty<*>): String
 
   // CHECK:
@@ -56,6 +65,9 @@ class Result {
     // CHECK JVM_IR:
     //   Mangled name: Result#<get-s>(){}kotlin.String
     //   Public signature: /Result.s.<get-s>|4142379646177092803[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Result#<get-s>(){}
+    //   Public signature: /Result.s.<get-s>|-1662172381559511151[0]
     get(): String
     // CHECK:
     //   Mangled name: Result#<set-s>(kotlin.String){}
@@ -66,9 +78,12 @@ class Result {
   //   Mangled name: Result#<init>!kotlin.Int(){}
   //   Public signature: /Result.<init>|-1392650824251324893[0]
   constructor($context_receiver_0: Int) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         Result.contextReceiverField0
   //   Mangled name computed from Descriptor: Result{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         Result.contextReceiverField0
+  //   Mangled name computed from Descriptor: Result{}contextReceiverField0
   private /* final field */ val contextReceiverField0: Int
 
 }
@@ -76,5 +91,8 @@ class Result {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.ir.txt
index 2bb6e3dbb48..6c3a66d2182 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.ir.txt
@@ -105,7 +105,7 @@ FILE fqName:<root> fileName:/canvas.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.MyCanvas
           <R>: kotlin.String
           receiver: GET_OBJECT 'CLASS OBJECT name:MyCanvas modality:FINAL visibility:public superTypes:[<root>.Canvas]' type=<root>.MyCanvas
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.kt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.kt
index c0e6f437b58..3852b5079f7 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.kt
@@ -1,6 +1,5 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 interface Canvas {
     val suffix: String
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.sig.kt.txt
index 00959b72de4..45f65cebd5c 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/canvas.sig.kt.txt
@@ -10,6 +10,9 @@ class Circle : Shape {
   // CHECK JVM_IR:
   //   Mangled name: Circle#draw!Canvas(){}kotlin.String
   //   Public signature: /Circle.draw|-6733499063990640842[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Circle#draw!Canvas(){}
+  //   Public signature: /Circle.draw|4876755509620013985[0]
   override fun draw($context_receiver_0: Canvas): String
 
 }
@@ -26,6 +29,9 @@ interface Canvas {
     // CHECK JVM_IR:
     //   Mangled name: Canvas#<get-suffix>(){}kotlin.String
     //   Public signature: /Canvas.suffix.<get-suffix>|8958072538558116778[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Canvas#<get-suffix>(){}
+    //   Public signature: /Canvas.suffix.<get-suffix>|-7634976832113083262[0]
     abstract get
 
 }
@@ -38,6 +44,9 @@ interface Shape {
   // CHECK JVM_IR:
   //   Mangled name: Shape#draw!Canvas(){}kotlin.String
   //   Public signature: /Shape.draw|-6733499063990640842[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Shape#draw!Canvas(){}
+  //   Public signature: /Shape.draw|4876755509620013985[0]
   abstract fun draw($context_receiver_0: Canvas): String
 
 }
@@ -53,6 +62,9 @@ object MyCanvas : Canvas {
     // CHECK JVM_IR:
     //   Mangled name: MyCanvas#<get-suffix>(){}kotlin.String
     //   Public signature: /MyCanvas.suffix.<get-suffix>|8958072538558116778[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyCanvas#<get-suffix>(){}
+    //   Public signature: /MyCanvas.suffix.<get-suffix>|-7634976832113083262[0]
     override get
 
   // CHECK:
@@ -65,5 +77,8 @@ object MyCanvas : Canvas {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
index 411813b343b..aebf0b9ff06 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
@@ -225,7 +225,7 @@ FILE fqName:<root> fileName:/compareTo.kt
                         other: CALL 'public open fun <get-length> (): kotlin.Int declared in kotlin.String' type=kotlin.Int origin=GET_PROPERTY
                           $this: GET_VAR 'b: @[FlexibleNullability] kotlin.String? declared in <root>.box.<anonymous>' type=@[FlexibleNullability] kotlin.String? origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: java.util.Comparator<kotlin.String>
           <R>: kotlin.String
           receiver: GET_VAR 'val comparator: java.util.Comparator<kotlin.String> declared in <root>.box' type=java.util.Comparator<kotlin.String> origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.ir.txt
index af70450f181..acbefb97a0b 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.ir.txt
@@ -229,7 +229,7 @@ FILE fqName:<root> fileName:/compareTo.kt
                           $this: TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
                             GET_VAR 'b: @[FlexibleNullability] kotlin.String? declared in <root>.box.<anonymous>' type=@[FlexibleNullability] kotlin.String? origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: java.util.Comparator<kotlin.String>
           <R>: kotlin.String
           receiver: GET_VAR 'val comparator: java.util.Comparator<kotlin.String> declared in <root>.box' type=java.util.Comparator<kotlin.String> origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.fir.ir.txt
index 158357aa10d..31bafd35324 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.fir.ir.txt
@@ -43,7 +43,7 @@ FILE fqName:<root> fileName:/dp.kt
             other: GET_VAR '<this>: kotlin.Int declared in <root>.<get-dp>' type=kotlin.Int origin=null
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Nothing origin=null
         <T>: <root>.View
         <R>: kotlin.Nothing
         receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.View' type=<root>.View origin=null
@@ -54,10 +54,10 @@ FILE fqName:<root> fileName:/dp.kt
               WHEN type=kotlin.Unit origin=IF
                 BRANCH
                   if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
-                    arg0: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    arg0: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       <R>: kotlin.Int
-                      $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                      $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                         <T>: kotlin.Int
                         elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                           CONST Int type=kotlin.Int value=1
@@ -71,7 +71,7 @@ FILE fqName:<root> fileName:/dp.kt
                               CALL 'public final fun <get-dp> ($context_receiver_0: <root>.View): kotlin.Int declared in <root>' type=kotlin.Int origin=GET_PROPERTY
                                 $receiver: GET_VAR 'it: kotlin.Int declared in <root>.box.<anonymous>.<anonymous>' type=kotlin.Int origin=null
                                 $context_receiver_0: GET_VAR '$this$with: <root>.View declared in <root>.box.<anonymous>' type=<root>.View origin=null
-                    arg1: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    arg1: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                         CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.ir.txt
index b147b1b53ea..9cc49f5812c 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.ir.txt
@@ -43,7 +43,7 @@ FILE fqName:<root> fileName:/dp.kt
             other: GET_VAR '<this>: kotlin.Int declared in <root>.<get-dp>' type=kotlin.Int origin=null
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Nothing origin=null
         <T>: <root>.View
         <R>: kotlin.Nothing
         receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.View' type=<root>.View origin=null
@@ -54,10 +54,10 @@ FILE fqName:<root> fileName:/dp.kt
               WHEN type=kotlin.Unit origin=IF
                 BRANCH
                   if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
-                    arg0: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    arg0: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       <R>: kotlin.Int
-                      $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                      $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                         <T>: kotlin.Int
                         elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                           CONST Int type=kotlin.Int value=1
@@ -71,7 +71,7 @@ FILE fqName:<root> fileName:/dp.kt
                               CALL 'public final fun <get-dp> ($context_receiver_0: <root>.View): kotlin.Int declared in <root>' type=kotlin.Int origin=GET_PROPERTY
                                 $receiver: GET_VAR 'it: kotlin.Int declared in <root>.box.<anonymous>.<anonymous>' type=kotlin.Int origin=null
                                 $context_receiver_0: GET_VAR '$this$with: <root>.View declared in <root>.box.<anonymous>' type=<root>.View origin=null
-                    arg1: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    arg1: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                         CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.kt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.kt
index f0bf951d389..1ee4a789db3 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 // WITH_STDLIB
 class View {
     val coefficient = 42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.sig.kt.txt
index 4c1a67858d8..c9441b45cea 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/dp.sig.kt.txt
@@ -9,6 +9,9 @@ class View {
     // CHECK JVM_IR:
     //   Mangled name: View#<get-coefficient>(){}kotlin.Int
     //   Public signature: /View.coefficient.<get-coefficient>|2286291581442465794[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: View#<get-coefficient>(){}
+    //   Public signature: /View.coefficient.<get-coefficient>|5285326162631504309[0]
     get
 
   // CHECK:
@@ -21,6 +24,9 @@ class View {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK:
@@ -30,5 +36,8 @@ val Int.dp: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-dp>!View@kotlin.Int(){}kotlin.Int
   //   Public signature: /dp.<get-dp>|933397372434095199[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-dp>!View@kotlin.Int(){}
+  //   Public signature: /dp.<get-dp>|-92585254995500394[0]
   get($context_receiver_0: View): Int
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.fir.ir.txt
index 2ad42b35c8f..a78a20c4d49 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.fir.ir.txt
@@ -94,7 +94,7 @@ FILE fqName:<root> fileName:/functionalType.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.O
           <R>: kotlin.String
           receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.O' type=<root>.O origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.ir.txt
index 46fe349ee89..8decfe4ca5c 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.ir.txt
@@ -94,7 +94,7 @@ FILE fqName:<root> fileName:/functionalType.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.O
           <R>: kotlin.String
           receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.O' type=<root>.O origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.kt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.kt
index da2d4d44472..956deecdfd3 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 class Param
 class O {
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.sig.kt.txt
index f43d1fbde2e..2c0cb0cbef6 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/functionalType.sig.kt.txt
@@ -9,6 +9,9 @@ class K {
     // CHECK JVM_IR:
     //   Mangled name: K#<get-k>(){}kotlin.String
     //   Public signature: /K.k.<get-k>|-8248201737917988340[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: K#<get-k>(){}
+    //   Public signature: /K.k.<get-k>|2619553883593572199[0]
     get
 
   // CHECK:
@@ -29,6 +32,9 @@ class O {
     // CHECK JVM_IR:
     //   Mangled name: O#<get-o>(){}kotlin.String
     //   Public signature: /O.o.<get-o>|2606027183154875572[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: O#<get-o>(){}
+    //   Public signature: /O.o.<get-o>|-5005637647237604760[0]
     get
 
   // CHECK:
@@ -52,10 +58,16 @@ class Param {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #f!O@K(kotlin.Function3<O,K,Param,0:0>){0§<kotlin.Any?>}0:0
 //   Public signature: /f|-7653040485655702379[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #f!O@K(kotlin.Function3<O,K,Param,0:0>){0§<kotlin.Any?>}
+//   Public signature: /f|6244942347355309773[0]
 fun <T : Any?> K.f($context_receiver_0: O, g: @ExtensionFunctionType Function3<O, K, Param, T>): T
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.fir.ir.txt
index 808eb001a05..4f2c5620086 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.fir.ir.txt
@@ -142,7 +142,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
     VALUE_PARAMETER name:$context_receiver_0 index:0 type:<root>.Monoid<T of <root>.sum>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>'
-        CALL 'public final fun fold <T, R> (initial: R of kotlin.collections.CollectionsKt.fold, operation: kotlin.Function2<R of kotlin.collections.CollectionsKt.fold, T of kotlin.collections.CollectionsKt.fold, R of kotlin.collections.CollectionsKt.fold>): R of kotlin.collections.CollectionsKt.fold declared in kotlin.collections.CollectionsKt' type=T of <root>.sum origin=null
+        CALL 'public final fun fold <T, R> (initial: R of kotlin.collections.fold, operation: kotlin.Function2<R of kotlin.collections.fold, T of kotlin.collections.fold, R of kotlin.collections.fold>): R of kotlin.collections.fold declared in kotlin.collections' type=T of <root>.sum origin=null
           <T>: T of <root>.sum
           <R>: T of <root>.sum
           $receiver: GET_VAR '<this>: kotlin.collections.List<T of <root>.sum> declared in <root>.sum' type=kotlin.collections.List<T of <root>.sum> origin=null
@@ -161,7 +161,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: <root>.IntMonoid
           <R>: kotlin.Int
           receiver: GET_OBJECT 'CLASS OBJECT name:IntMonoid modality:FINAL visibility:public superTypes:[<root>.Monoid<kotlin.Int>]' type=<root>.IntMonoid
@@ -172,7 +172,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.box'
                   CALL 'public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>' type=kotlin.Int origin=null
                     <T>: kotlin.Int
-                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                         CONST Int type=kotlin.Int value=1
@@ -180,7 +180,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                         CONST Int type=kotlin.Int value=3
                     $context_receiver_0: GET_VAR '$this$with: <root>.IntMonoid declared in <root>.box.<anonymous>' type=<root>.IntMonoid origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.StringMonoid
           <R>: kotlin.String
           receiver: GET_OBJECT 'CLASS OBJECT name:StringMonoid modality:FINAL visibility:public superTypes:[<root>.Monoid<kotlin.String>]' type=<root>.StringMonoid
@@ -191,7 +191,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String declared in <root>.box'
                   CALL 'public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>' type=kotlin.String origin=null
                     <T>: kotlin.String
-                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
                       <T>: kotlin.String
                       elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                         CONST String type=kotlin.String value="O"
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.ir.txt
index 659380c3706..260b82e57fc 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.ir.txt
@@ -142,7 +142,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
     VALUE_PARAMETER name:$context_receiver_0 index:0 type:<root>.Monoid<T of <root>.sum>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>'
-        CALL 'public final fun fold <T, R> (initial: R of kotlin.collections.CollectionsKt.fold, operation: kotlin.Function2<@[ParameterName(name = 'acc')] R of kotlin.collections.CollectionsKt.fold, T of kotlin.collections.CollectionsKt.fold, R of kotlin.collections.CollectionsKt.fold>): R of kotlin.collections.CollectionsKt.fold declared in kotlin.collections.CollectionsKt' type=T of <root>.sum origin=null
+        CALL 'public final fun fold <T, R> (initial: R of kotlin.collections.fold, operation: kotlin.Function2<@[ParameterName(name = 'acc')] R of kotlin.collections.fold, T of kotlin.collections.fold, R of kotlin.collections.fold>): R of kotlin.collections.fold declared in kotlin.collections' type=T of <root>.sum origin=null
           <T>: T of <root>.sum
           <R>: T of <root>.sum
           $receiver: GET_VAR '<this>: kotlin.collections.List<T of <root>.sum> declared in <root>.sum' type=kotlin.collections.List<T of <root>.sum> origin=null
@@ -161,7 +161,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: <root>.IntMonoid
           <R>: kotlin.Int
           receiver: GET_OBJECT 'CLASS OBJECT name:IntMonoid modality:FINAL visibility:public superTypes:[<root>.Monoid<kotlin.Int>]' type=<root>.IntMonoid
@@ -172,7 +172,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.box'
                   CALL 'public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>' type=kotlin.Int origin=null
                     <T>: kotlin.Int
-                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
                       <T>: kotlin.Int
                       elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
                         CONST Int type=kotlin.Int value=1
@@ -180,7 +180,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                         CONST Int type=kotlin.Int value=3
                     $context_receiver_0: GET_VAR '$this$with: <root>.IntMonoid declared in <root>.box.<anonymous>' type=<root>.IntMonoid origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.String origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.String origin=null
           <T>: <root>.StringMonoid
           <R>: kotlin.String
           receiver: GET_OBJECT 'CLASS OBJECT name:StringMonoid modality:FINAL visibility:public superTypes:[<root>.Monoid<kotlin.String>]' type=<root>.StringMonoid
@@ -191,7 +191,7 @@ FILE fqName:<root> fileName:/monoidSum.kt
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String declared in <root>.box'
                   CALL 'public final fun sum <T> ($context_receiver_0: <root>.Monoid<T of <root>.sum>): T of <root>.sum declared in <root>' type=kotlin.String origin=null
                     <T>: kotlin.String
-                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+                    $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
                       <T>: kotlin.String
                       elements: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                         CONST String type=kotlin.String value="O"
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.kt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.kt
index e0b5a889179..8509191dfa8 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 // WITH_STDLIB
 interface Semigroup<T> {
     infix fun T.combine(other: T): T
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.sig.kt.txt
index 4d47a1b8f9e..e0fc471ab41 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/monoidSum.sig.kt.txt
@@ -5,6 +5,9 @@ interface Monoid<T : Any?> : Semigroup<T> {
   // CHECK JVM_IR:
   //   Mangled name: Monoid#combine@1:0(1:0){}1:0
   //   Public signature: /Monoid.combine|-3517256775590682507[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Monoid#combine@1:0(1:0){}
+  //   Public signature: /Monoid.combine|8412967464389689937[0]
   abstract /* fake */ override infix fun T.combine(other: T): T
 
   // CHECK:
@@ -14,6 +17,9 @@ interface Monoid<T : Any?> : Semigroup<T> {
     // CHECK JVM_IR:
     //   Mangled name: Monoid#<get-unit>(){}1:0
     //   Public signature: /Monoid.unit.<get-unit>|-2842189358620964971[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Monoid#<get-unit>(){}
+    //   Public signature: /Monoid.unit.<get-unit>|1530864625432111105[0]
     abstract get
 
 }
@@ -26,6 +32,9 @@ interface Semigroup<T : Any?> {
   // CHECK JVM_IR:
   //   Mangled name: Semigroup#combine@1:0(1:0){}1:0
   //   Public signature: /Semigroup.combine|-3517256775590682507[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Semigroup#combine@1:0(1:0){}
+  //   Public signature: /Semigroup.combine|8412967464389689937[0]
   abstract infix fun T.combine(other: T): T
 
 }
@@ -41,6 +50,9 @@ object IntMonoid : Monoid<Int> {
     // CHECK JVM_IR:
     //   Mangled name: IntMonoid#<get-unit>(){}kotlin.Int
     //   Public signature: /IntMonoid.unit.<get-unit>|3772729924213749256[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: IntMonoid#<get-unit>(){}
+    //   Public signature: /IntMonoid.unit.<get-unit>|1530864625432111105[0]
     override get
 
   // CHECK:
@@ -51,6 +63,9 @@ object IntMonoid : Monoid<Int> {
   // CHECK JVM_IR:
   //   Mangled name: IntMonoid#combine@kotlin.Int(kotlin.Int){}kotlin.Int
   //   Public signature: /IntMonoid.combine|4765448259581317405[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: IntMonoid#combine@kotlin.Int(kotlin.Int){}
+  //   Public signature: /IntMonoid.combine|4429091503069708823[0]
   override infix fun Int.combine(other: Int): Int
 
 }
@@ -66,6 +81,9 @@ object StringMonoid : Monoid<String> {
     // CHECK JVM_IR:
     //   Mangled name: StringMonoid#<get-unit>(){}kotlin.String
     //   Public signature: /StringMonoid.unit.<get-unit>|4504480110251605077[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: StringMonoid#<get-unit>(){}
+    //   Public signature: /StringMonoid.unit.<get-unit>|1530864625432111105[0]
     override get
 
   // CHECK:
@@ -76,6 +94,9 @@ object StringMonoid : Monoid<String> {
   // CHECK JVM_IR:
   //   Mangled name: StringMonoid#combine@kotlin.String(kotlin.String){}kotlin.String
   //   Public signature: /StringMonoid.combine|-5815259829474546918[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: StringMonoid#combine@kotlin.String(kotlin.String){}
+  //   Public signature: /StringMonoid.combine|-2748332935123183663[0]
   override infix fun String.combine(other: String): String
 
 }
@@ -83,10 +104,16 @@ object StringMonoid : Monoid<String> {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #sum!Monoid<0:0>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0
 //   Public signature: /sum|7635142307973834922[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #sum!Monoid<0:0>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+//   Public signature: /sum|6490726678726957775[0]
 fun <T : Any?> List<T>.sum($context_receiver_0: Monoid<T>): T
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/function.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/function.ir.txt
index 0c9785cda34..e9bd075837f 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/function.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/function.ir.txt
@@ -39,7 +39,7 @@ FILE fqName:<root> fileName:/function.kt
   FUN name:bar visibility:public modality:FINAL <> (c:<root>.C) returnType:kotlin.Unit
     VALUE_PARAMETER name:c index:0 type:<root>.C
     BLOCK_BODY
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.C
         <R>: kotlin.Unit
         receiver: GET_VAR 'c: <root>.C declared in <root>.bar' type=<root>.C origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/function.kt b/compiler/testData/ir/irText/declarations/contextReceivers/function.kt
index 67585c87b4b..15d003a54f6 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/function.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/function.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/function.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/function.sig.kt.txt
index 0589b79aeaf..794a1907582 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/function.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/function.sig.kt.txt
@@ -10,6 +10,9 @@ class C {
     // CHECK JVM_IR:
     //   Mangled name: C#<get-c>(){}kotlin.Int
     //   Public signature: /C.c.<get-c>|-2440337234483931882[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: C#<get-c>(){}
+    //   Public signature: /C.c.<get-c>|2368736057102379596[0]
     get
 
   // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.fir.ir.txt
index 926a43103a5..dfa456dddf8 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.fir.ir.txt
@@ -164,7 +164,7 @@ FILE fqName:<root> fileName:/functionalType.kt
               TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                 CALL 'public final fun <get-c> (): kotlin.Int declared in <root>.C' type=kotlin.Int origin=GET_PROPERTY
                   $this: GET_VAR '$context_receiver_0: <root>.C declared in <root>.test.<anonymous>' type=<root>.C origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.C
         <R>: kotlin.Unit
         receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.C' type=<root>.C origin=null
@@ -172,7 +172,7 @@ FILE fqName:<root> fileName:/functionalType.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.C) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.C
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.R
                 <R>: kotlin.Unit
                 receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.R' type=<root>.R origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.ir.txt
index 03781a32a18..dd5443d4524 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.ir.txt
@@ -164,7 +164,7 @@ FILE fqName:<root> fileName:/functionalType.kt
               TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                 CALL 'public final fun <get-c> (): kotlin.Int declared in <root>.C' type=kotlin.Int origin=GET_PROPERTY
                   $this: GET_VAR '$context_receiver_0: <root>.C declared in <root>.test.<anonymous>' type=<root>.C origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.C
         <R>: kotlin.Unit
         receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.C' type=<root>.C origin=null
@@ -172,7 +172,7 @@ FILE fqName:<root> fileName:/functionalType.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.C) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.C
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.R
                 <R>: kotlin.Unit
                 receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.R' type=<root>.R origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.kt b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.kt
index b27c2d2818b..06ffff7c30c 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
+
 class Param
 class C {
     val c = 42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.sig.kt.txt
index 2df3d27c44a..406886080a3 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/functionalType.sig.kt.txt
@@ -9,6 +9,9 @@ class C {
     // CHECK JVM_IR:
     //   Mangled name: C#<get-c>(){}kotlin.Int
     //   Public signature: /C.c.<get-c>|-2440337234483931882[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: C#<get-c>(){}
+    //   Public signature: /C.c.<get-c>|2368736057102379596[0]
     get
 
   // CHECK:
@@ -40,6 +43,9 @@ class R {
     // CHECK JVM_IR:
     //   Mangled name: R#<get-r>(){}kotlin.Int
     //   Public signature: /R.r.<get-r>|4210912234201800356[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: R#<get-r>(){}
+    //   Public signature: /R.r.<get-r>|-7424184448774736572[0]
     get
 
   // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.kt b/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.kt
index 86c976f0538..13d545303fb 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.kt
@@ -1,13 +1,9 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 
-// IGNORE_BACKEND_K1: JS_IR
-// IGNORE_BACKEND_K1: JS_IR_ES6
-
-// MUTE_SIGNATURE_COMPARISON_K2: ANY
+// MUTE_SIGNATURE_COMPARISON_K2: JVM_IR
 // ^ KT-57429
 
-
 context(T) class A<T>
 
 context(Collection<P>) class B<P>
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.sig.kt.txt
index 38461a3a27e..5ebcf8a2c43 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/genericOuterClass.sig.kt.txt
@@ -6,9 +6,12 @@ class A<T : Any?> {
   //   Mangled name: A#<init>!1:0(){}
   //   Public signature: /A.<init>|5547349096232763669[0]
   constructor($context_receiver_0: T) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         A.contextReceiverField0
   //   Mangled name computed from Descriptor: A{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         A.contextReceiverField0
+  //   Mangled name computed from Descriptor: A{}contextReceiverField0
   private /* final field */ val contextReceiverField0: T
 
 }
@@ -21,9 +24,12 @@ class B<P : Any?> {
   //   Mangled name: B#<init>!kotlin.collections.Collection<1:0>(){}
   //   Public signature: /B.<init>|-5453957848603821578[0]
   constructor($context_receiver_0: Collection<P>) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         B.contextReceiverField0
   //   Mangled name computed from Descriptor: B{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         B.contextReceiverField0
+  //   Mangled name computed from Descriptor: B{}contextReceiverField0
   private /* final field */ val contextReceiverField0: Collection<P>
 
 }
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
index 2a766cced7b..b617edff9ef 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
@@ -260,7 +260,7 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
     VALUE_PARAMETER name:$context_receiver_0 index:0 type:<root>.CounterConfig
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun iterator ($context_receiver_0: <root>.CounterConfig): <root>.CounterIterator declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.CounterIterator origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.CounterIterator origin=null
           <T>: <root>.CounterConfig
           <R>: <root>.CounterIterator
           receiver: GET_VAR '$context_receiver_0: <root>.CounterConfig declared in <root>.iterator' type=<root>.CounterConfig origin=null
@@ -276,7 +276,7 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
     BLOCK_BODY
       VAR name:result type:kotlin.Int [var]
         CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.CounterConfig
         <R>: kotlin.Unit
         receiver: CONSTRUCTOR_CALL 'public constructor <init> (max: kotlin.Int) declared in <root>.CounterConfig' type=<root>.CounterConfig origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.ir.txt
index eb57ee126b8..8c50d52c391 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.ir.txt
@@ -263,7 +263,7 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
     VALUE_PARAMETER name:$context_receiver_0 index:0 type:<root>.CounterConfig
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun iterator ($context_receiver_0: <root>.CounterConfig): <root>.CounterIterator declared in <root>'
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.CounterIterator origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.CounterIterator origin=null
           <T>: <root>.CounterConfig
           <R>: <root>.CounterIterator
           receiver: GET_VAR '$context_receiver_0: <root>.CounterConfig declared in <root>.iterator' type=<root>.CounterConfig origin=null
@@ -279,7 +279,7 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
     BLOCK_BODY
       VAR name:result type:kotlin.Int [var]
         CONST Int type=kotlin.Int value=0
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.CounterConfig
         <R>: kotlin.Unit
         receiver: CONSTRUCTOR_CALL 'public constructor <init> (max: kotlin.Int) declared in <root>.CounterConfig' type=<root>.CounterConfig origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.kt b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.kt
index 2fdbc167cf6..00a4d393499 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 // WITH_STDLIB
 data class Counter(var i: Int = 0)
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.sig.kt.txt
index 9c14df83a8c..df7ad924993 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.sig.kt.txt
@@ -9,6 +9,9 @@ data class Counter {
     // CHECK JVM_IR:
     //   Mangled name: Counter#<get-i>(){}kotlin.Int
     //   Public signature: /Counter.i.<get-i>|-8784396159001927527[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Counter#<get-i>(){}
+    //   Public signature: /Counter.i.<get-i>|6945482638966853621[0]
     get
     // CHECK:
     //   Mangled name: Counter#<set-i>(kotlin.Int){}
@@ -22,26 +25,41 @@ data class Counter {
   // CHECK JVM_IR:
   //   Mangled name: Counter#component1(){}kotlin.Int
   //   Public signature: /Counter.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Counter#component1(){}
+  //   Public signature: /Counter.component1|162597135895221648[0]
   operator fun component1(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Counter#copy(kotlin.Int){}Counter
   //   Public signature: /Counter.copy|2961790952651150110[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Counter#copy(kotlin.Int){}
+  //   Public signature: /Counter.copy|-6971662324481626298[0]
   fun copy(i: Int): Counter
 
   // CHECK JVM_IR:
   //   Mangled name: Counter#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /Counter.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Counter#equals(kotlin.Any?){}
+  //   Public signature: /Counter.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: Counter#hashCode(){}kotlin.Int
   //   Public signature: /Counter.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Counter#hashCode(){}
+  //   Public signature: /Counter.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Counter#toString(){}kotlin.String
   //   Public signature: /Counter.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Counter#toString(){}
+  //   Public signature: /Counter.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -57,6 +75,9 @@ data class CounterConfig {
     // CHECK JVM_IR:
     //   Mangled name: CounterConfig#<get-max>(){}kotlin.Int
     //   Public signature: /CounterConfig.max.<get-max>|3083068406880796820[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: CounterConfig#<get-max>(){}
+    //   Public signature: /CounterConfig.max.<get-max>|-2092975001266666827[0]
     get
 
   // CHECK:
@@ -66,26 +87,41 @@ data class CounterConfig {
   // CHECK JVM_IR:
   //   Mangled name: CounterConfig#component1(){}kotlin.Int
   //   Public signature: /CounterConfig.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterConfig#component1(){}
+  //   Public signature: /CounterConfig.component1|162597135895221648[0]
   operator fun component1(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: CounterConfig#copy(kotlin.Int){}CounterConfig
   //   Public signature: /CounterConfig.copy|-6936688204078599579[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterConfig#copy(kotlin.Int){}
+  //   Public signature: /CounterConfig.copy|-6971662324481626298[0]
   fun copy(max: Int): CounterConfig
 
   // CHECK JVM_IR:
   //   Mangled name: CounterConfig#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /CounterConfig.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterConfig#equals(kotlin.Any?){}
+  //   Public signature: /CounterConfig.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: CounterConfig#hashCode(){}kotlin.Int
   //   Public signature: /CounterConfig.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterConfig#hashCode(){}
+  //   Public signature: /CounterConfig.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: CounterConfig#toString(){}kotlin.String
   //   Public signature: /CounterConfig.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterConfig#toString(){}
+  //   Public signature: /CounterConfig.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -101,25 +137,37 @@ class CounterIterator : Iterator<Int> {
     // CHECK JVM_IR:
     //   Mangled name: CounterIterator#<get-counter>(){}Counter
     //   Public signature: /CounterIterator.counter.<get-counter>|-1972897806384113317[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: CounterIterator#<get-counter>(){}
+    //   Public signature: /CounterIterator.counter.<get-counter>|6903507550118978958[0]
     private get
 
   // CHECK:
   //   Mangled name: CounterIterator#<init>!CounterConfig(Counter){}
   //   Public signature: /CounterIterator.<init>|4731448293962665986[0]
   constructor($context_receiver_0: CounterConfig, counter: Counter) /* primary */
-  // CHECK:
+  // CHECK JVM_IR:
   //   Mangled name computed from Ir:         CounterIterator.contextReceiverField0
   //   Mangled name computed from Descriptor: CounterIterator{}contextReceiverField0#jf
+  // CHECK JS_IR NATIVE:
+  //   Mangled name computed from Ir:         CounterIterator.contextReceiverField0
+  //   Mangled name computed from Descriptor: CounterIterator{}contextReceiverField0
   private /* final field */ val contextReceiverField0: CounterConfig
 
   // CHECK JVM_IR:
   //   Mangled name: CounterIterator#hasNext(){}kotlin.Boolean
   //   Public signature: /CounterIterator.hasNext|-8822308834813776763[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterIterator#hasNext(){}
+  //   Public signature: /CounterIterator.hasNext|-3649021657867765832[0]
   override operator fun hasNext(): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: CounterIterator#next(){}kotlin.Int
   //   Public signature: /CounterIterator.next|-2200495694769701977[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: CounterIterator#next(){}
+  //   Public signature: /CounterIterator.next|4628025478201224268[0]
   override operator fun next(): Int
 
 }
@@ -127,10 +175,16 @@ class CounterIterator : Iterator<Int> {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #iterator!CounterConfig@Counter(){}CounterIterator
 //   Public signature: /iterator|3723033021471264185[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #iterator!CounterConfig@Counter(){}
+//   Public signature: /iterator|-4428923153638402647[0]
 operator fun Counter.iterator($context_receiver_0: CounterConfig): CounterIterator
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/lazy.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/lazy.ir.txt
index 508d2466547..ec81619d320 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/lazy.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/lazy.ir.txt
@@ -39,7 +39,7 @@ FILE fqName:<root> fileName:/lazy.kt
     VALUE_PARAMETER name:lazyT index:2 type:<root>.Lazy<T of <root>.f>
     VALUE_PARAMETER name:lazyLazyT index:3 type:<root>.Lazy<<root>.Lazy<T of <root>.f>>
     BLOCK_BODY
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.Lazy<kotlin.Int>
         <R>: kotlin.Unit
         receiver: GET_VAR 'lazy1: <root>.Lazy<kotlin.Int> declared in <root>.f' type=<root>.Lazy<kotlin.Int> origin=null
@@ -47,7 +47,7 @@ FILE fqName:<root> fileName:/lazy.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.Lazy<kotlin.Int>) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.Lazy<kotlin.Int>
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.Lazy<kotlin.CharSequence>
                 <R>: kotlin.Unit
                 receiver: GET_VAR 'lazy2: <root>.Lazy<kotlin.CharSequence> declared in <root>.f' type=<root>.Lazy<kotlin.CharSequence> origin=null
@@ -62,7 +62,7 @@ FILE fqName:<root> fileName:/lazy.kt
                         <T>: kotlin.CharSequence
                         $receiver: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
                         $context_receiver_0: GET_VAR '$this$with: <root>.Lazy<kotlin.CharSequence> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.CharSequence> origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.Lazy<kotlin.CharSequence>
         <R>: kotlin.Unit
         receiver: GET_VAR 'lazy2: <root>.Lazy<kotlin.CharSequence> declared in <root>.f' type=<root>.Lazy<kotlin.CharSequence> origin=null
@@ -70,7 +70,7 @@ FILE fqName:<root> fileName:/lazy.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.Lazy<kotlin.CharSequence>) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.Lazy<kotlin.CharSequence>
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.Lazy<kotlin.Int>
                 <R>: kotlin.Unit
                 receiver: GET_VAR 'lazy1: <root>.Lazy<kotlin.Int> declared in <root>.f' type=<root>.Lazy<kotlin.Int> origin=null
@@ -85,7 +85,7 @@ FILE fqName:<root> fileName:/lazy.kt
                         <T>: kotlin.Int
                         $receiver: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
                         $context_receiver_0: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.Lazy<T of <root>.f>
         <R>: kotlin.Unit
         receiver: GET_VAR 'lazyT: <root>.Lazy<T of <root>.f> declared in <root>.f' type=<root>.Lazy<T of <root>.f> origin=null
@@ -93,7 +93,7 @@ FILE fqName:<root> fileName:/lazy.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.Lazy<T of <root>.f>) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.Lazy<T of <root>.f>
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.Lazy<kotlin.Int>
                 <R>: kotlin.Unit
                 receiver: GET_VAR 'lazy1: <root>.Lazy<kotlin.Int> declared in <root>.f' type=<root>.Lazy<kotlin.Int> origin=null
@@ -105,7 +105,7 @@ FILE fqName:<root> fileName:/lazy.kt
                         <T>: kotlin.Int
                         $receiver: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
                         $context_receiver_0: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.Lazy<<root>.Lazy<T of <root>.f>>
         <R>: kotlin.Unit
         receiver: GET_VAR 'lazyLazyT: <root>.Lazy<<root>.Lazy<T of <root>.f>> declared in <root>.f' type=<root>.Lazy<<root>.Lazy<T of <root>.f>> origin=null
@@ -113,7 +113,7 @@ FILE fqName:<root> fileName:/lazy.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.Lazy<<root>.Lazy<T of <root>.f>>) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.Lazy<<root>.Lazy<T of <root>.f>>
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.Lazy<kotlin.Int>
                 <R>: kotlin.Unit
                 receiver: GET_VAR 'lazy1: <root>.Lazy<kotlin.Int> declared in <root>.f' type=<root>.Lazy<kotlin.Int> origin=null
@@ -129,7 +129,7 @@ FILE fqName:<root> fileName:/lazy.kt
                         <T>: T of <root>.f
                         $receiver: GET_VAR '$this$with: <root>.Lazy<kotlin.Int> declared in <root>.f.<anonymous>.<anonymous>' type=<root>.Lazy<kotlin.Int> origin=null
                         $context_receiver_0: GET_VAR '$this$with: <root>.Lazy<<root>.Lazy<T of <root>.f>> declared in <root>.f.<anonymous>' type=<root>.Lazy<<root>.Lazy<T of <root>.f>> origin=null
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: <root>.Lazy<kotlin.Int>
         <R>: kotlin.Unit
         receiver: GET_VAR 'lazy1: <root>.Lazy<kotlin.Int> declared in <root>.f' type=<root>.Lazy<kotlin.Int> origin=null
@@ -137,7 +137,7 @@ FILE fqName:<root> fileName:/lazy.kt
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:<root>.Lazy<kotlin.Int>) returnType:kotlin.Unit
             $receiver: VALUE_PARAMETER name:$this$with type:<root>.Lazy<kotlin.Int>
             BLOCK_BODY
-              CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+              CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
                 <T>: <root>.Lazy<<root>.Lazy<T of <root>.f>>
                 <R>: kotlin.Unit
                 receiver: GET_VAR 'lazyLazyT: <root>.Lazy<<root>.Lazy<T of <root>.f>> declared in <root>.f' type=<root>.Lazy<<root>.Lazy<T of <root>.f>> origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/lazy.kt b/compiler/testData/ir/irText/declarations/contextReceivers/lazy.kt
index 2ee7531c3a0..e54329abcc8 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/lazy.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/lazy.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.ir.txt
index 1c7d34c7ccc..96c1b35f272 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.ir.txt
@@ -23,15 +23,15 @@ FILE fqName:<root> fileName:/overloadPriority.kt
     VALUE_PARAMETER name:$context_receiver_0 index:0 type:<root>.Context
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun f ($context_receiver_0: <root>.Context): kotlin.String declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:f visibility:public modality:FINAL <> () returnType:kotlin.Any
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun f (): kotlin.Any declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: <root>.Context
           <R>: kotlin.Int
           receiver: CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.Context' type=<root>.Context origin=null
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.kt b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.kt
index 4e2211ddaec..d87a03e929e 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.sig.kt.txt
index f725d50fe14..2de3420c066 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloadPriority.sig.kt.txt
@@ -12,11 +12,17 @@ class Context {
 // CHECK JVM_IR:
 //   Mangled name: #f!Context(){}kotlin.String
 //   Public signature: /f|-5175802051654911360[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #f!Context(){}
+//   Public signature: /f|-1050574650869165395[0]
 fun f($context_receiver_0: Context): String
 
 // CHECK JVM_IR:
 //   Mangled name: #f(){}kotlin.Any
 //   Public signature: /f|-2324325393552926316[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #f(){}
+//   Public signature: /f|5316533450599009716[0]
 fun f(): Any
 
 // CHECK:
@@ -25,5 +31,7 @@ fun f(): Any
 fun test(): Unit
   // CHECK JVM_IR:
   //   Mangled name: #test(){}#<anonymous>#static@Context(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #test(){}#<anonymous>#static@Context(){}
   local fun Context.<anonymous>(): Int
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.ir.txt
index 7b1e5e2eec6..c7828878889 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.ir.txt
@@ -19,7 +19,7 @@ FILE fqName:<root> fileName:/overloading.kt
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: kotlin.Int
           <R>: kotlin.Int
           receiver: CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.kt b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.kt
index 54a4c02d50d..757fea1e990 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.sig.kt.txt
index 2d6988b3b66..a7bb7efd64b 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/overloading.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/overloading.sig.kt.txt
@@ -1,11 +1,17 @@
 // CHECK JVM_IR:
 //   Mangled name: #foo!kotlin.Int(){}kotlin.Int
 //   Public signature: /foo|-298514072419997277[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #foo!kotlin.Int(){}
+//   Public signature: /foo|-2047845050892281405[0]
 fun foo($context_receiver_0: Int): Int
 
 // CHECK JVM_IR:
 //   Mangled name: #foo!kotlin.Int!kotlin.String(){}kotlin.Int
 //   Public signature: /foo|7076979931255393427[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #foo!kotlin.Int!kotlin.String(){}
+//   Public signature: /foo|-6855876411691473491[0]
 fun foo($context_receiver_0: Int, $context_receiver_1: String): Int
 
 // CHECK:
@@ -14,5 +20,7 @@ fun foo($context_receiver_0: Int, $context_receiver_1: String): Int
 fun test(): Unit
   // CHECK JVM_IR:
   //   Mangled name: #test(){}#<anonymous>#static@kotlin.Int(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #test(){}#<anonymous>#static@kotlin.Int(){}
   local fun Int.<anonymous>(): Int
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.ir.txt
index 1a065bca107..78b2f265ccd 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.ir.txt
@@ -44,7 +44,7 @@ FILE fqName:<root> fileName:/plusMatrix.kt
     VALUE_PARAMETER name:other index:1 type:<root>.Matrix
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun plus ($context_receiver_0: <root>.NumberOperations, other: <root>.Matrix): <root>.Matrix declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:plusMatrix visibility:public modality:FINAL <> ($receiver:<root>.NumberOperations, m1:<root>.Matrix, m2:<root>.Matrix) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.NumberOperations
     VALUE_PARAMETER name:m1 index:0 type:<root>.Matrix
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.kt b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.kt
index 1cefbb8b0c4..6c4708cb1db 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.kt
@@ -1,8 +1,7 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // !DIAGNOSTICS: -UNUSED_PARAMETER
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
+
 interface NumberOperations {
     fun Number.plus(other: Number): Number
 }
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.sig.kt.txt
index d898e0973dd..04aeeef260d 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/plusMatrix.sig.kt.txt
@@ -17,6 +17,9 @@ interface NumberOperations {
   // CHECK JVM_IR:
   //   Mangled name: NumberOperations#plus@kotlin.Number(kotlin.Number){}kotlin.Number
   //   Public signature: /NumberOperations.plus|-6518987633126930952[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: NumberOperations#plus@kotlin.Number(kotlin.Number){}
+  //   Public signature: /NumberOperations.plus|-1680445349837757562[0]
   abstract fun Number.plus(other: Number): Number
 
 }
@@ -24,6 +27,9 @@ interface NumberOperations {
 // CHECK JVM_IR:
 //   Mangled name: #plus!NumberOperations@Matrix(Matrix){}Matrix
 //   Public signature: /plus|1303343764214809933[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #plus!NumberOperations@Matrix(Matrix){}
+//   Public signature: /plus|-2670469522083122958[0]
 fun Matrix.plus($context_receiver_0: NumberOperations, other: Matrix): Matrix
 
 // CHECK:
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.kt b/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.kt
index f99d215016d..2ffb81f60a2 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.kt
@@ -1,9 +1,7 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND_K1: JS_IR
-// IGNORE_BACKEND_K1: JS_IR_ES6
 
-// MUTE_SIGNATURE_COMPARISON_K2: ANY
+// MUTE_SIGNATURE_COMPARISON_K2: JVM_IR
 // ^ KT-57429
 
 class A<T>(val a: T)
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.sig.kt.txt
index 4792aab4c0d..a758037a002 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/thisWithCustomLabel.sig.kt.txt
@@ -9,6 +9,9 @@ class A<T : Any?> {
     // CHECK JVM_IR:
     //   Mangled name: A#<get-a>(){}1:0
     //   Public signature: /A.a.<get-a>|5765441560292063424[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-a>(){}
+    //   Public signature: /A.a.<get-a>|6785176174175479410[0]
     get
 
   // CHECK:
@@ -29,6 +32,9 @@ class B {
     // CHECK JVM_IR:
     //   Mangled name: B#<get-b>(){}kotlin.Any
     //   Public signature: /B.b.<get-b>|4768115582956424363[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: B#<get-b>(){}
+    //   Public signature: /B.b.<get-b>|812004636995167743[0]
     get
 
   // CHECK:
@@ -49,6 +55,9 @@ class C {
     // CHECK JVM_IR:
     //   Mangled name: C#<get-c>(){}kotlin.Any
     //   Public signature: /C.c.<get-c>|-7073232512849879703[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: C#<get-c>(){}
+    //   Public signature: /C.c.<get-c>|2368736057102379596[0]
     get
 
   // CHECK:
@@ -70,5 +79,8 @@ val C.p: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-p>!A<kotlin.Int>!A<kotlin.String>!B@C(){}kotlin.Int
   //   Public signature: /p.<get-p>|-7725362510645392909[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-p>!A<kotlin.Int>!A<kotlin.String>!B@C(){}
+  //   Public signature: /p.<get-p>|-2698360468898936971[0]
   get($context_receiver_0: A<Int>, $context_receiver_1: A<String>, $context_receiver_2: B): Int
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.ir.txt
index 189e64269c7..2ad1c7fad2e 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.ir.txt
@@ -7,7 +7,7 @@ FILE fqName:<root> fileName:/typeParameterAsContextReceiver.kt
     BLOCK_BODY
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         <R>: kotlin.Unit
         receiver: CONST Int type=kotlin.Int value=42
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.kt b/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.kt
index 676a6e3db20..6ccc55bbcb7 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/typeParameterAsContextReceiver.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
 // !LANGUAGE: +ContextReceivers
 // DUMP_LOCAL_DECLARATION_SIGNATURES
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57428
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
index 9880df328c9..b3a21f34985 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
@@ -176,7 +176,7 @@ FILE fqName:<root> fileName:/unaryOperators.kt
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.Result' type=<root>.Result origin=null
           i: CONST Int type=kotlin.Int value=0
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.Result origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.Result origin=null
           <T>: kotlin.Int
           <R>: <root>.Result
           receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.ir.txt
index 50cd214c6ce..fdbd6635e42 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.ir.txt
@@ -181,7 +181,7 @@ FILE fqName:<root> fileName:/unaryOperators.kt
         CONSTRUCTOR_CALL 'public constructor <init> (i: kotlin.Int) declared in <root>.Result' type=<root>.Result origin=null
           i: CONST Int type=kotlin.Int value=0
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=<root>.Result origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=<root>.Result origin=null
           <T>: kotlin.Int
           <R>: <root>.Result
           receiver: CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.kt b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.kt
index b065aabe11e..3a84a325e08 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.kt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +ContextReceivers
-// IGNORE_BACKEND: JS_IR
 
 data class Result(val i: Int)
 
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.sig.kt.txt b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.sig.kt.txt
index bbde809924d..5c0aa186297 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.sig.kt.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.sig.kt.txt
@@ -5,6 +5,9 @@ var operationScore: Int
   // CHECK JVM_IR:
   //   Mangled name: #<get-operationScore>(){}kotlin.Int
   //   Public signature: /operationScore.<get-operationScore>|7107010356269447258[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-operationScore>(){}
+  //   Public signature: /operationScore.<get-operationScore>|6765204501149451629[0]
   get
   // CHECK:
   //   Mangled name: #<set-operationScore>(kotlin.Int){}
@@ -22,6 +25,9 @@ data class Result {
     // CHECK JVM_IR:
     //   Mangled name: Result#<get-i>(){}kotlin.Int
     //   Public signature: /Result.i.<get-i>|-8784396159001927527[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Result#<get-i>(){}
+    //   Public signature: /Result.i.<get-i>|6945482638966853621[0]
     get
 
   // CHECK:
@@ -31,26 +37,41 @@ data class Result {
   // CHECK JVM_IR:
   //   Mangled name: Result#component1(){}kotlin.Int
   //   Public signature: /Result.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#component1(){}
+  //   Public signature: /Result.component1|162597135895221648[0]
   operator fun component1(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Result#copy(kotlin.Int){}Result
   //   Public signature: /Result.copy|5439238034196076859[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#copy(kotlin.Int){}
+  //   Public signature: /Result.copy|-6971662324481626298[0]
   fun copy(i: Int): Result
 
   // CHECK JVM_IR:
   //   Mangled name: Result#equals(kotlin.Any?){}kotlin.Boolean
   //   Public signature: /Result.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#equals(kotlin.Any?){}
+  //   Public signature: /Result.equals|4638265728071529943[0]
   override operator fun equals(other: Any?): Boolean
 
   // CHECK JVM_IR:
   //   Mangled name: Result#hashCode(){}kotlin.Int
   //   Public signature: /Result.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#hashCode(){}
+  //   Public signature: /Result.hashCode|3409210261493131192[0]
   override fun hashCode(): Int
 
   // CHECK JVM_IR:
   //   Mangled name: Result#toString(){}kotlin.String
   //   Public signature: /Result.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Result#toString(){}
+  //   Public signature: /Result.toString|-1522858123163872138[0]
   override fun toString(): String
 
 }
@@ -58,25 +79,40 @@ data class Result {
 // CHECK JVM_IR:
 //   Mangled name: #box(){}kotlin.String
 //   Public signature: /box|-9347091776561469[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #box(){}
+//   Public signature: /box|2173511048851971368[0]
 fun box(): String
 
 // CHECK JVM_IR:
 //   Mangled name: #dec!kotlin.Int@Result(){}Result
 //   Public signature: /dec|6054584114651390969[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #dec!kotlin.Int@Result(){}
+//   Public signature: /dec|-7224087074051473472[0]
 operator fun Result.dec($context_receiver_0: Int): Result
 
 // CHECK JVM_IR:
 //   Mangled name: #inc!kotlin.Int@Result(){}Result
 //   Public signature: /inc|-6349683016158919485[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #inc!kotlin.Int@Result(){}
+//   Public signature: /inc|6156460640001049173[0]
 operator fun Result.inc($context_receiver_0: Int): Result
 
 // CHECK JVM_IR:
 //   Mangled name: #unaryMinus!kotlin.Int@Result(){}Result
 //   Public signature: /unaryMinus|-8891797954767898088[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #unaryMinus!kotlin.Int@Result(){}
+//   Public signature: /unaryMinus|-1245437128467335194[0]
 operator fun Result.unaryMinus($context_receiver_0: Int): Result
 
 // CHECK JVM_IR:
 //   Mangled name: #unaryPlus!kotlin.Int@Result(){}Result
 //   Public signature: /unaryPlus|6329022242309077522[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #unaryPlus!kotlin.Int@Result(){}
+//   Public signature: /unaryPlus|-4073638544609631[0]
 operator fun Result.unaryPlus($context_receiver_0: Int): Result
 
diff --git a/compiler/testData/ir/irText/declarations/delegatedProperties.fir.ir.txt b/compiler/testData/ir/irText/declarations/delegatedProperties.fir.ir.txt
index 48a98c19b82..2a659014245 100644
--- a/compiler/testData/ir/irText/declarations/delegatedProperties.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/delegatedProperties.fir.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
   PROPERTY name:test1 visibility:public modality:FINAL [delegated,val]
     FIELD PROPERTY_DELEGATE name:test1$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
           <T>: kotlin.Int
           initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [delegated,val]
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-test1> (): kotlin.Int declared in <root>'
-          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
             <T>: kotlin.Int
             $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test1$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]' type=kotlin.Lazy<kotlin.Int> origin=null
             thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -39,7 +39,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
     PROPERTY name:test2 visibility:public modality:FINAL [delegated,val]
       FIELD PROPERTY_DELEGATE name:test2$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -51,7 +51,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.C
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun <get-test2> (): kotlin.Int declared in <root>.C'
-            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
               <T>: kotlin.Int
               $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test2$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]' type=kotlin.Lazy<kotlin.Int> origin=null
                 receiver: GET_VAR '<this>: <root>.C declared in <root>.C.<get-test2>' type=<root>.C origin=null
@@ -102,7 +102,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
   PROPERTY name:test4 visibility:public modality:FINAL [delegated,var]
     FIELD PROPERTY_DELEGATE name:test4$delegate type:java.util.HashMap<kotlin.String, kotlin.Any> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Any> origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Any> origin=null
           <K>: kotlin.String
           <V>: kotlin.Any
     FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test4> visibility:public modality:FINAL <> () returnType:kotlin.Any
diff --git a/compiler/testData/ir/irText/declarations/delegatedProperties.ir.txt b/compiler/testData/ir/irText/declarations/delegatedProperties.ir.txt
index 75c6677bb8c..23bdebd5fc6 100644
--- a/compiler/testData/ir/irText/declarations/delegatedProperties.ir.txt
+++ b/compiler/testData/ir/irText/declarations/delegatedProperties.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
   PROPERTY name:test1 visibility:public modality:FINAL [delegated,val]
     FIELD PROPERTY_DELEGATE name:test1$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
           <T>: kotlin.Int
           initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [delegated,val]
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-test1> (): kotlin.Int declared in <root>'
-          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
             <T>: kotlin.Int
             $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test1$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]' type=kotlin.Lazy<kotlin.Int> origin=null
             thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -39,7 +39,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
     PROPERTY name:test2 visibility:public modality:FINAL [delegated,val]
       FIELD PROPERTY_DELEGATE name:test2$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -51,7 +51,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.C
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun <get-test2> (): kotlin.Int declared in <root>.C'
-            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+            CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
               <T>: kotlin.Int
               $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test2$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final]' type=kotlin.Lazy<kotlin.Int> origin=null
                 receiver: GET_VAR '<this>: <root>.C declared in <root>.C.<get-test2>' type=<root>.C origin=null
@@ -103,7 +103,7 @@ FILE fqName:<root> fileName:/delegatedProperties.kt
   PROPERTY name:test4 visibility:public modality:FINAL [delegated,var]
     FIELD PROPERTY_DELEGATE name:test4$delegate type:java.util.HashMap<kotlin.String, kotlin.Any>{ kotlin.collections.HashMap<kotlin.String, kotlin.Any> } visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> } declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Any>{ kotlin.collections.HashMap<kotlin.String, kotlin.Any> } origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Any>{ kotlin.collections.HashMap<kotlin.String, kotlin.Any> } origin=null
           <K>: kotlin.String
           <V>: kotlin.Any
     FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test4> visibility:public modality:FINAL <> () returnType:kotlin.Any
diff --git a/compiler/testData/ir/irText/declarations/kt27005.ir.txt b/compiler/testData/ir/irText/declarations/kt27005.ir.txt
index 9f66763ff05..185d86e988f 100644
--- a/compiler/testData/ir/irText/declarations/kt27005.ir.txt
+++ b/compiler/testData/ir/irText/declarations/kt27005.ir.txt
@@ -12,4 +12,4 @@ FILE fqName:<root> fileName:/kt27005.kt
   FUN name:baz visibility:public modality:FINAL <T> () returnType:T of <root>.baz [suspend]
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
     BLOCK_BODY
-      CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+      CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
diff --git a/compiler/testData/ir/irText/declarations/kt27005.kt b/compiler/testData/ir/irText/declarations/kt27005.kt
index 607ca03aba2..d24ad7f7458 100644
--- a/compiler/testData/ir/irText/declarations/kt27005.kt
+++ b/compiler/testData/ir/irText/declarations/kt27005.kt
@@ -1,6 +1,4 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 suspend fun foo() = baz<Unit>()
 suspend fun bar() = baz<Any>()
diff --git a/compiler/testData/ir/irText/declarations/kt47527.fir.ir.txt b/compiler/testData/ir/irText/declarations/kt47527.fir.ir.txt
index ca77f63870d..a697b93a11c 100644
--- a/compiler/testData/ir/irText/declarations/kt47527.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/kt47527.fir.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/kt47527.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                 <T>: kotlin.Any
                 <R>: kotlin.Nothing
                 $receiver: GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.test_1' type=kotlin.Any? origin=null
@@ -28,7 +28,7 @@ FILE fqName:<root> fileName:/kt47527.kt
     VALUE_PARAMETER name:value index:0 type:kotlin.Any?
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test_2 (value: kotlin.Any?): kotlin.String? declared in <root>'
-        CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.String? origin=null
+        CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.String? origin=null
           <R>: kotlin.String?
           block: FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
@@ -45,7 +45,7 @@ FILE fqName:<root> fileName:/kt47527.kt
                         then: CONST Null type=kotlin.Nothing? value=null
                       BRANCH
                         if: CONST Boolean type=kotlin.Boolean value=true
-                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                           <T>: kotlin.Any
                           <R>: kotlin.Nothing
                           $receiver: GET_VAR 'val tmp_1: kotlin.Any? declared in <root>.test_2.<anonymous>' type=kotlin.Any? origin=null
diff --git a/compiler/testData/ir/irText/declarations/kt47527.ir.txt b/compiler/testData/ir/irText/declarations/kt47527.ir.txt
index 7d9834da62a..fdea4228c02 100644
--- a/compiler/testData/ir/irText/declarations/kt47527.ir.txt
+++ b/compiler/testData/ir/irText/declarations/kt47527.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/kt47527.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                 <T>: kotlin.Any
                 <R>: kotlin.Nothing
                 $receiver: GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.test_1' type=kotlin.Any? origin=null
@@ -28,7 +28,7 @@ FILE fqName:<root> fileName:/kt47527.kt
     VALUE_PARAMETER name:value index:0 type:kotlin.Any?
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test_2 (value: kotlin.Any?): kotlin.String? declared in <root>'
-        CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Nothing? origin=null
+        CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Nothing? origin=null
           <R>: kotlin.Nothing?
           block: FUN_EXPR type=kotlin.Function0<kotlin.Nothing?> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Nothing?
@@ -45,7 +45,7 @@ FILE fqName:<root> fileName:/kt47527.kt
                         then: CONST Null type=kotlin.Nothing? value=null
                       BRANCH
                         if: CONST Boolean type=kotlin.Boolean value=true
-                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                        then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                           <T>: kotlin.Any
                           <R>: kotlin.Nothing
                           $receiver: GET_VAR 'val tmp_1: kotlin.Any? declared in <root>.test_2.<anonymous>' type=kotlin.Any? origin=null
diff --git a/compiler/testData/ir/irText/declarations/kt47527.kt b/compiler/testData/ir/irText/declarations/kt47527.kt
index febc770d387..24f129ddec9 100644
--- a/compiler/testData/ir/irText/declarations/kt47527.kt
+++ b/compiler/testData/ir/irText/declarations/kt47527.kt
@@ -1,7 +1,5 @@
 // ISSUE: KT-47527
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 fun test_1(value: Any?): String? = value?.let { return "O" }
 fun test_2(value: Any?): String? = run {
diff --git a/compiler/testData/ir/irText/declarations/localDelegatedProperties.fir.ir.txt b/compiler/testData/ir/irText/declarations/localDelegatedProperties.fir.ir.txt
index b8da4ecd892..23e030b3804 100644
--- a/compiler/testData/ir/irText/declarations/localDelegatedProperties.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/localDelegatedProperties.fir.ir.txt
@@ -3,7 +3,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
     BLOCK_BODY
       LOCAL_DELEGATED_PROPERTY name:x type:kotlin.Int flags:val
         VAR PROPERTY_DELEGATE name:x$delegate type:kotlin.Lazy<kotlin.Int> [val]
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-x> visibility:local modality:FINAL <> () returnType:kotlin.Int
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='local final fun <get-x> (): kotlin.Int declared in <root>.test1'
-              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
                 <T>: kotlin.Int
                 $receiver: GET_VAR 'val x$delegate: kotlin.Lazy<kotlin.Int> declared in <root>.test1' type=kotlin.Lazy<kotlin.Int> origin=null
                 thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -24,7 +24,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
     BLOCK_BODY
       LOCAL_DELEGATED_PROPERTY name:x type:kotlin.Int flags:var
         VAR PROPERTY_DELEGATE name:x$delegate type:java.util.HashMap<kotlin.String, kotlin.Int> [val]
-          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
+          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
             <K>: kotlin.String
             <V>: kotlin.Int
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-x> visibility:local modality:FINAL <> () returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/declarations/localDelegatedProperties.ir.txt b/compiler/testData/ir/irText/declarations/localDelegatedProperties.ir.txt
index 2d35b97b267..e2ae705a8ce 100644
--- a/compiler/testData/ir/irText/declarations/localDelegatedProperties.ir.txt
+++ b/compiler/testData/ir/irText/declarations/localDelegatedProperties.ir.txt
@@ -3,7 +3,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
     BLOCK_BODY
       LOCAL_DELEGATED_PROPERTY name:x type:kotlin.Int flags:val
         VAR PROPERTY_DELEGATE name:x$delegate type:kotlin.Lazy<kotlin.Int> [val]
-          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+          CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
             <T>: kotlin.Int
             initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-x> visibility:local modality:FINAL <> () returnType:kotlin.Int
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='local final fun <get-x> (): kotlin.Int declared in <root>.test1'
-              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+              CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
                 <T>: kotlin.Int
                 $receiver: GET_VAR 'val x$delegate: kotlin.Lazy<kotlin.Int> declared in <root>.test1' type=kotlin.Lazy<kotlin.Int> origin=null
                 thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -24,7 +24,7 @@ FILE fqName:<root> fileName:/localDelegatedProperties.kt
     BLOCK_BODY
       LOCAL_DELEGATED_PROPERTY name:x type:kotlin.Int flags:var
         VAR PROPERTY_DELEGATE name:x$delegate type:java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } [val]
-          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> } declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
+          CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
             <K>: kotlin.String
             <V>: kotlin.Int
         FUN DELEGATED_PROPERTY_ACCESSOR name:<get-x> visibility:local modality:FINAL <> () returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/declarations/packageLevelProperties.fir.ir.txt b/compiler/testData/ir/irText/declarations/packageLevelProperties.fir.ir.txt
index 8b50f4d8538..dec8c6e8554 100644
--- a/compiler/testData/ir/irText/declarations/packageLevelProperties.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/packageLevelProperties.fir.ir.txt
@@ -71,7 +71,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
   PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
     FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
           <T>: kotlin.Int
           initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -82,7 +82,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
       correspondingProperty: PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-test7> (): kotlin.Int declared in <root>'
-          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
             <T>: kotlin.Int
             $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]' type=kotlin.Lazy<kotlin.Int> origin=null
             thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -90,7 +90,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
   PROPERTY name:test8 visibility:public modality:FINAL [delegated,var]
     FIELD PROPERTY_DELEGATE name:test8$delegate type:java.util.HashMap<kotlin.String, kotlin.Int> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int> origin=null
           <K>: kotlin.String
           <V>: kotlin.Int
     FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test8> visibility:public modality:FINAL <> () returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/declarations/packageLevelProperties.ir.txt b/compiler/testData/ir/irText/declarations/packageLevelProperties.ir.txt
index 7cff377d64f..1dcfcfb558a 100644
--- a/compiler/testData/ir/irText/declarations/packageLevelProperties.ir.txt
+++ b/compiler/testData/ir/irText/declarations/packageLevelProperties.ir.txt
@@ -71,7 +71,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
   PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
     FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.LazyKt.lazy>): kotlin.Lazy<T of kotlin.LazyKt.lazy> declared in kotlin.LazyKt' type=kotlin.Lazy<kotlin.Int> origin=null
+        CALL 'public final fun lazy <T> (initializer: kotlin.Function0<T of kotlin.lazy>): kotlin.Lazy<T of kotlin.lazy> declared in kotlin' type=kotlin.Lazy<kotlin.Int> origin=null
           <T>: kotlin.Int
           initializer: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
@@ -82,7 +82,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
       correspondingProperty: PROPERTY name:test7 visibility:public modality:FINAL [delegated,val]
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-test7> (): kotlin.Int declared in <root>'
-          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.LazyKt.getValue declared in kotlin.LazyKt' type=kotlin.Int origin=null
+          CALL 'public final fun getValue <T> (thisRef: kotlin.Any?, property: kotlin.reflect.KProperty<*>): T of kotlin.getValue declared in kotlin' type=kotlin.Int origin=null
             <T>: kotlin.Int
             $receiver: GET_FIELD 'FIELD PROPERTY_DELEGATE name:test7$delegate type:kotlin.Lazy<kotlin.Int> visibility:private [final,static]' type=kotlin.Lazy<kotlin.Int> origin=null
             thisRef: CONST Null type=kotlin.Nothing? value=null
@@ -90,7 +90,7 @@ FILE fqName:<root> fileName:/packageLevelProperties.kt
   PROPERTY name:test8 visibility:public modality:FINAL [delegated,var]
     FIELD PROPERTY_DELEGATE name:test8$delegate type:java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> } declared in kotlin.collections.MapsKt' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } declared in kotlin.collections' type=java.util.HashMap<kotlin.String, kotlin.Int>{ kotlin.collections.HashMap<kotlin.String, kotlin.Int> } origin=null
           <K>: kotlin.String
           <V>: kotlin.Int
     FUN DELEGATED_PROPERTY_ACCESSOR name:<get-test8> visibility:public modality:FINAL <> () returnType:kotlin.Int
diff --git a/compiler/testData/ir/irText/expressions/argumentMappedWithError.ir.txt b/compiler/testData/ir/irText/expressions/argumentMappedWithError.ir.txt
index e29ecc14621..01b069d485c 100644
--- a/compiler/testData/ir/irText/expressions/argumentMappedWithError.ir.txt
+++ b/compiler/testData/ir/irText/expressions/argumentMappedWithError.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/argumentMappedWithError.kt
     $receiver: VALUE_PARAMETER name:<this> type:kotlin.Number
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun convert <R> (): R of <root>.convert declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:foo visibility:public modality:FINAL <> (arg:kotlin.Number) returnType:kotlin.Unit
     VALUE_PARAMETER name:arg index:0 type:kotlin.Number
     BLOCK_BODY
diff --git a/compiler/testData/ir/irText/expressions/argumentMappedWithError.kt b/compiler/testData/ir/irText/expressions/argumentMappedWithError.kt
index 9ff8b3a5143..15306a5d73e 100644
--- a/compiler/testData/ir/irText/expressions/argumentMappedWithError.kt
+++ b/compiler/testData/ir/irText/expressions/argumentMappedWithError.kt
@@ -1,8 +1,6 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
-// MUTE_SIGNATURE_COMPARISON_K2: ANY
+// MUTE_SIGNATURE_COMPARISON_K2: JVM_IR
 // ^ KT-57755
 
 fun <R : Number> Number.convert(): R = TODO()
diff --git a/compiler/testData/ir/irText/expressions/badInlinedBreakContinue.ir.txt b/compiler/testData/ir/irText/expressions/badInlinedBreakContinue.ir.txt
index 26128f6cdbb..adfb049a51e 100644
--- a/compiler/testData/ir/irText/expressions/badInlinedBreakContinue.ir.txt
+++ b/compiler/testData/ir/irText/expressions/badInlinedBreakContinue.ir.txt
@@ -216,9 +216,9 @@ FILE fqName:<root> fileName:/badInlinedBreakContinue.kt
         body: BLOCK type=kotlin.Unit origin=null
   FUN name:test5 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
-        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
           <T>: kotlin.Int
           elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
             CONST Int type=kotlin.Int value=1
@@ -234,9 +234,9 @@ FILE fqName:<root> fileName:/badInlinedBreakContinue.kt
                     arg0: GET_VAR 'i: kotlin.Int declared in <root>.test5.<anonymous>' type=kotlin.Int origin=null
                     arg1: CONST Int type=kotlin.Int value=2
                   then: ERROR_EXPR 'Loop not found for break expression: break' type=kotlin.Nothing
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
-        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
           <T>: kotlin.Int
           elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
             CONST Int type=kotlin.Int value=1
@@ -252,9 +252,9 @@ FILE fqName:<root> fileName:/badInlinedBreakContinue.kt
                     arg0: GET_VAR 'i: kotlin.Int declared in <root>.test5.<anonymous>' type=kotlin.Int origin=null
                     arg1: CONST Int type=kotlin.Int value=2
                   then: ERROR_EXPR 'Loop not found for continue expression: continue' type=kotlin.Nothing
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
-        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
           <T>: kotlin.Int
           elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
             CONST Int type=kotlin.Int value=1
@@ -270,9 +270,9 @@ FILE fqName:<root> fileName:/badInlinedBreakContinue.kt
                     arg0: GET_VAR 'i: kotlin.Int declared in <root>.test5.<no name provided>' type=kotlin.Int origin=null
                     arg1: CONST Int type=kotlin.Int value=2
                   then: ERROR_EXPR 'Loop not found for break expression: break' type=kotlin.Nothing
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
-        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Int> origin=null
+        $receiver: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Int> origin=null
           <T>: kotlin.Int
           elements: VARARG type=kotlin.Array<out kotlin.Int> varargElementType=kotlin.Int
             CONST Int type=kotlin.Int value=1
diff --git a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.fir.ir.txt b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.fir.ir.txt
index d6b7be5ecc5..1b0d0872c85 100644
--- a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.fir.ir.txt
+++ b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.fir.ir.txt
@@ -77,7 +77,7 @@ FILE fqName:<root> fileName:/kt46069.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=<root>.ObjectAssert<T of <root>.assertNotNull?>? origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=<root>.ObjectAssert<T of <root>.assertNotNull?>? origin=null
                 <T>: kotlin.String
                 <R>: <root>.ObjectAssert<T of <root>.assertNotNull?>?
                 $receiver: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.assertNotNull' type=kotlin.String? origin=null
diff --git a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.ir.txt b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.ir.txt
index 44451a18563..7f795b6c589 100644
--- a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.ir.txt
+++ b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.ir.txt
@@ -77,7 +77,7 @@ FILE fqName:<root> fileName:/kt46069.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=<root>.ObjectAssert<T of <root>.assertNotNull?>? origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=<root>.ObjectAssert<T of <root>.assertNotNull?>? origin=null
                 <T>: kotlin.String
                 <R>: <root>.ObjectAssert<T of <root>.assertNotNull?>?
                 $receiver: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.assertNotNull' type=kotlin.String? origin=null
diff --git a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.kt b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.kt
index 587e7330e3b..8b92b56eb8e 100644
--- a/compiler/testData/ir/irText/expressions/callableReferences/kt46069.kt
+++ b/compiler/testData/ir/irText/expressions/callableReferences/kt46069.kt
@@ -1,7 +1,4 @@
 // SKIP_KT_DUMP
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
-
 class ObjectAssert<ACTUAL> {
     fun describedAs(description: String?, vararg args: Any?): ObjectAssert<ACTUAL>? = null
 }
diff --git a/compiler/testData/ir/irText/expressions/kt30020.fir.ir.txt b/compiler/testData/ir/irText/expressions/kt30020.fir.ir.txt
index 37320a32890..72d196e27ee 100644
--- a/compiler/testData/ir/irText/expressions/kt30020.fir.ir.txt
+++ b/compiler/testData/ir/irText/expressions/kt30020.fir.ir.txt
@@ -24,29 +24,29 @@ FILE fqName:<root> fileName:/kt30020.kt
     VALUE_PARAMETER name:x index:0 type:<root>.X
     VALUE_PARAMETER name:nx index:1 type:<root>.X?
     BLOCK_BODY
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=GET_PROPERTY
           $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=1
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: CALL 'public abstract fun f (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=null
           $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=2
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: TYPE_OP type=kotlin.collections.MutableList<kotlin.Int> origin=CAST typeOperand=kotlin.collections.MutableList<kotlin.Int>
           CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=GET_PROPERTY
             $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=3
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: TYPE_OP type=kotlin.collections.MutableList<kotlin.Int> origin=CAST typeOperand=kotlin.collections.MutableList<kotlin.Int>
           CALL 'public abstract fun f (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=null
             $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=4
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: CALL 'public final fun CHECK_NOT_NULL <T0> (arg0: T0 of kotlin.internal.ir.CHECK_NOT_NULL?): {T0 of kotlin.internal.ir.CHECK_NOT_NULL & Any} declared in kotlin.internal.ir' type=kotlin.collections.MutableList<kotlin.Any> origin=EXCLEXCL
           <T0>: kotlin.collections.MutableList<kotlin.Any>
@@ -64,7 +64,7 @@ FILE fqName:<root> fileName:/kt30020.kt
                 then: CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=GET_PROPERTY
                   $this: GET_VAR 'val tmp_0: <root>.X? declared in <root>.test' type=<root>.X? origin=null
         element: CONST Int type=kotlin.Int value=5
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: CALL 'public final fun CHECK_NOT_NULL <T0> (arg0: T0 of kotlin.internal.ir.CHECK_NOT_NULL?): {T0 of kotlin.internal.ir.CHECK_NOT_NULL & Any} declared in kotlin.internal.ir' type=kotlin.collections.MutableList<kotlin.Any> origin=EXCLEXCL
           <T0>: kotlin.collections.MutableList<kotlin.Any>
@@ -85,7 +85,7 @@ FILE fqName:<root> fileName:/kt30020.kt
   FUN name:testExtensionReceiver visibility:public modality:FINAL <> ($receiver:kotlin.collections.MutableList<kotlin.Any>) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList<kotlin.Any>
     BLOCK_BODY
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: GET_VAR '<this>: kotlin.collections.MutableList<kotlin.Any> declared in <root>.testExtensionReceiver' type=kotlin.collections.MutableList<kotlin.Any> origin=null
         element: CONST Int type=kotlin.Int value=100
@@ -98,7 +98,7 @@ FILE fqName:<root> fileName:/kt30020.kt
     FUN name:testExplicitThis visibility:public modality:FINAL <> ($this:<root>.AML) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.AML
       BLOCK_BODY
-        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
           <T>: kotlin.Int
           $receiver: GET_VAR '<this>: <root>.AML declared in <root>.AML.testExplicitThis' type=<root>.AML origin=null
           element: CONST Int type=kotlin.Int value=200
@@ -112,7 +112,7 @@ FILE fqName:<root> fileName:/kt30020.kt
       FUN name:testOuterThis visibility:public modality:FINAL <> ($this:<root>.AML.Inner) returnType:kotlin.Unit
         $this: VALUE_PARAMETER name:<this> type:<root>.AML.Inner
         BLOCK_BODY
-          CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+          CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
             <T>: kotlin.Int
             $receiver: GET_VAR '<this>: <root>.AML declared in <root>.AML' type=<root>.AML origin=null
             element: CONST Int type=kotlin.Int value=300
diff --git a/compiler/testData/ir/irText/expressions/kt30020.ir.txt b/compiler/testData/ir/irText/expressions/kt30020.ir.txt
index 421a9122455..77f3435cf42 100644
--- a/compiler/testData/ir/irText/expressions/kt30020.ir.txt
+++ b/compiler/testData/ir/irText/expressions/kt30020.ir.txt
@@ -27,29 +27,29 @@ FILE fqName:<root> fileName:/kt30020.kt
       BLOCK type=kotlin.Unit origin=PLUSEQ
         VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.X [val]
           GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
-        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
           <T>: kotlin.Int
           $receiver: CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=PLUSEQ
             $this: GET_VAR 'val tmp_0: <root>.X declared in <root>.test' type=<root>.X origin=null
           element: CONST Int type=kotlin.Int value=1
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: CALL 'public abstract fun f (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=null
           $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=2
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: TYPE_OP type=kotlin.collections.MutableList<kotlin.Int> origin=CAST typeOperand=kotlin.collections.MutableList<kotlin.Int>
           CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=GET_PROPERTY
             $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=3
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: TYPE_OP type=kotlin.collections.MutableList<kotlin.Int> origin=CAST typeOperand=kotlin.collections.MutableList<kotlin.Int>
           CALL 'public abstract fun f (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=null
             $this: GET_VAR 'x: <root>.X declared in <root>.test' type=<root>.X origin=null
         element: CONST Int type=kotlin.Int value=4
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: CALL 'public final fun CHECK_NOT_NULL <T0> (arg0: T0 of kotlin.internal.ir.CHECK_NOT_NULL?): {T0 of kotlin.internal.ir.CHECK_NOT_NULL & Any} declared in kotlin.internal.ir' type=kotlin.collections.MutableList<kotlin.Any> origin=EXCLEXCL
           <T0>: kotlin.collections.MutableList<kotlin.Any>
@@ -67,7 +67,7 @@ FILE fqName:<root> fileName:/kt30020.kt
                 then: CALL 'public abstract fun <get-xs> (): kotlin.collections.MutableList<kotlin.Any> declared in <root>.X' type=kotlin.collections.MutableList<kotlin.Any> origin=GET_PROPERTY
                   $this: GET_VAR 'val tmp_1: <root>.X? declared in <root>.test' type=<root>.X? origin=null
         element: CONST Int type=kotlin.Int value=5
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: CALL 'public final fun CHECK_NOT_NULL <T0> (arg0: T0 of kotlin.internal.ir.CHECK_NOT_NULL?): {T0 of kotlin.internal.ir.CHECK_NOT_NULL & Any} declared in kotlin.internal.ir' type=kotlin.collections.MutableList<kotlin.Any> origin=EXCLEXCL
           <T0>: kotlin.collections.MutableList<kotlin.Any>
@@ -88,7 +88,7 @@ FILE fqName:<root> fileName:/kt30020.kt
   FUN name:testExtensionReceiver visibility:public modality:FINAL <> ($receiver:kotlin.collections.MutableList<kotlin.Any>) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList<kotlin.Any>
     BLOCK_BODY
-      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+      CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
         <T>: kotlin.Int
         $receiver: GET_VAR '<this>: kotlin.collections.MutableList<kotlin.Any> declared in <root>.testExtensionReceiver' type=kotlin.collections.MutableList<kotlin.Any> origin=PLUSEQ
         element: CONST Int type=kotlin.Int value=100
@@ -101,7 +101,7 @@ FILE fqName:<root> fileName:/kt30020.kt
     FUN name:testExplicitThis visibility:public modality:FINAL <> ($this:<root>.AML) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.AML
       BLOCK_BODY
-        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+        CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
           <T>: kotlin.Int
           $receiver: GET_VAR '<this>: <root>.AML declared in <root>.AML.testExplicitThis' type=<root>.AML origin=PLUSEQ
           element: CONST Int type=kotlin.Int value=200
@@ -115,7 +115,7 @@ FILE fqName:<root> fileName:/kt30020.kt
       FUN name:testOuterThis visibility:public modality:FINAL <> ($this:<root>.AML.Inner) returnType:kotlin.Unit
         $this: VALUE_PARAMETER name:<this> type:<root>.AML.Inner
         BLOCK_BODY
-          CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.CollectionsKt.plusAssign): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=PLUSEQ
+          CALL 'public final fun plusAssign <T> (element: T of kotlin.collections.plusAssign): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=PLUSEQ
             <T>: kotlin.Int
             $receiver: GET_VAR '<this>: <root>.AML declared in <root>.AML' type=<root>.AML origin=PLUSEQ
             element: CONST Int type=kotlin.Int value=300
diff --git a/compiler/testData/ir/irText/expressions/kt30020.kt b/compiler/testData/ir/irText/expressions/kt30020.kt
index 568eaad0b65..938927c0b61 100644
--- a/compiler/testData/ir/irText/expressions/kt30020.kt
+++ b/compiler/testData/ir/irText/expressions/kt30020.kt
@@ -1,6 +1,6 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
+// IGNORE_BACKEND_K2: JS_IR
+// ^ the order of fake overrides is different on K2
 
 interface X {
     val xs: MutableList<Any>
diff --git a/compiler/testData/ir/irText/expressions/kt37570.ir.txt b/compiler/testData/ir/irText/expressions/kt37570.ir.txt
index 1337d44cf5d..cd391984a0b 100644
--- a/compiler/testData/ir/irText/expressions/kt37570.ir.txt
+++ b/compiler/testData/ir/irText/expressions/kt37570.ir.txt
@@ -21,7 +21,7 @@ FILE fqName:<root> fileName:/kt37570.kt
     ANONYMOUS_INITIALIZER isStatic=false
       BLOCK_BODY
         TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-          CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.apply, kotlin.Unit>): T of kotlin.StandardKt.apply declared in kotlin.StandardKt' type=kotlin.String origin=null
+          CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.apply, kotlin.Unit>): T of kotlin.apply declared in kotlin' type=kotlin.String origin=null
             <T>: kotlin.String
             $receiver: CALL 'public final fun a (): kotlin.String declared in <root>' type=kotlin.String origin=null
             block: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/expressions/kt37570.kt b/compiler/testData/ir/irText/expressions/kt37570.kt
index 1ce6666adc7..800ea4a9731 100644
--- a/compiler/testData/ir/irText/expressions/kt37570.kt
+++ b/compiler/testData/ir/irText/expressions/kt37570.kt
@@ -1,6 +1,4 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 fun a() = "string"
 
diff --git a/compiler/testData/ir/irText/expressions/kt51036.ir.txt b/compiler/testData/ir/irText/expressions/kt51036.ir.txt
index 23a43cd9888..25559de4210 100644
--- a/compiler/testData/ir/irText/expressions/kt51036.ir.txt
+++ b/compiler/testData/ir/irText/expressions/kt51036.ir.txt
@@ -36,7 +36,7 @@ FILE fqName:<root> fileName:/kt51036.kt
         RETURN type=kotlin.Nothing from='public final fun close (): kotlin.Unit declared in <root>.A'
           CALL 'public final fun invoke (): kotlin.Unit declared in <root>.A' type=kotlin.Unit origin=null
             $this: GET_VAR '<this>: <root>.A declared in <root>.A.close' type=<root>.A origin=null
-            $receiver: CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.String origin=null
+            $receiver: CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.String origin=null
               <R>: kotlin.String
               block: FUN_EXPR type=kotlin.Function0<kotlin.String> origin=LAMBDA
                 FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String
diff --git a/compiler/testData/ir/irText/expressions/kt51036.kt b/compiler/testData/ir/irText/expressions/kt51036.kt
index 04f96bfa1ca..795e32a5149 100644
--- a/compiler/testData/ir/irText/expressions/kt51036.kt
+++ b/compiler/testData/ir/irText/expressions/kt51036.kt
@@ -1,7 +1,5 @@
 // FIR_IDENTICAL
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 // SKIP_KT_DUMP
 
 class A {
diff --git a/compiler/testData/ir/irText/expressions/when.fir.ir.txt b/compiler/testData/ir/irText/expressions/when.fir.ir.txt
index a39650930d0..62ffaff8164 100644
--- a/compiler/testData/ir/irText/expressions/when.fir.ir.txt
+++ b/compiler/testData/ir/irText/expressions/when.fir.ir.txt
@@ -45,9 +45,9 @@ FILE fqName:<root> fileName:/when.kt
                 GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.testWithSubject' type=kotlin.Any? origin=null
               then: CONST String type=kotlin.String value="!Number"
             BRANCH
-              if: CALL 'public final fun contains <T> (element: T of kotlin.collections.CollectionsKt.contains): kotlin.Boolean declared in kotlin.collections.CollectionsKt' type=kotlin.Boolean origin=IN
+              if: CALL 'public final fun contains <T> (element: T of kotlin.collections.contains): kotlin.Boolean declared in kotlin.collections' type=kotlin.Boolean origin=IN
                 <T>: kotlin.Number
-                $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.Nothing> origin=null
+                $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.Nothing> origin=null
                   <T>: kotlin.Nothing
                 element: TYPE_OP type=kotlin.Number origin=IMPLICIT_CAST typeOperand=kotlin.Number
                   GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.testWithSubject' type=kotlin.Any? origin=null
@@ -79,9 +79,9 @@ FILE fqName:<root> fileName:/when.kt
               GET_VAR 'x: kotlin.Any? declared in <root>.test' type=kotlin.Any? origin=null
             then: CONST String type=kotlin.String value="!Number"
           BRANCH
-            if: CALL 'public final fun contains <T> (element: T of kotlin.collections.CollectionsKt.contains): kotlin.Boolean declared in kotlin.collections.CollectionsKt' type=kotlin.Boolean origin=IN
+            if: CALL 'public final fun contains <T> (element: T of kotlin.collections.contains): kotlin.Boolean declared in kotlin.collections' type=kotlin.Boolean origin=IN
               <T>: kotlin.Number
-              $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.Nothing> origin=null
+              $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.Nothing> origin=null
                 <T>: kotlin.Nothing
               element: TYPE_OP type=kotlin.Number origin=IMPLICIT_CAST typeOperand=kotlin.Number
                 GET_VAR 'x: kotlin.Any? declared in <root>.test' type=kotlin.Any? origin=null
diff --git a/compiler/testData/ir/irText/expressions/when.ir.txt b/compiler/testData/ir/irText/expressions/when.ir.txt
index 44002bdbfd5..f495f97fb3e 100644
--- a/compiler/testData/ir/irText/expressions/when.ir.txt
+++ b/compiler/testData/ir/irText/expressions/when.ir.txt
@@ -46,9 +46,9 @@ FILE fqName:<root> fileName:/when.kt
                   GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.testWithSubject' type=kotlin.Any? origin=null
               then: CONST String type=kotlin.String value="!Number"
             BRANCH
-              if: CALL 'public final fun contains <T> (element: T of kotlin.collections.CollectionsKt.contains): kotlin.Boolean declared in kotlin.collections.CollectionsKt' type=kotlin.Boolean origin=IN
+              if: CALL 'public final fun contains <T> (element: T of kotlin.collections.contains): kotlin.Boolean declared in kotlin.collections' type=kotlin.Boolean origin=IN
                 <T>: kotlin.Number
-                $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.Nothing> origin=null
+                $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.Nothing> origin=null
                   <T>: kotlin.Nothing
                 element: TYPE_OP type=kotlin.Number origin=IMPLICIT_CAST typeOperand=kotlin.Number
                   GET_VAR 'val tmp_0: kotlin.Any? declared in <root>.testWithSubject' type=kotlin.Any? origin=null
@@ -80,9 +80,9 @@ FILE fqName:<root> fileName:/when.kt
               GET_VAR 'x: kotlin.Any? declared in <root>.test' type=kotlin.Any? origin=null
             then: CONST String type=kotlin.String value="!Number"
           BRANCH
-            if: CALL 'public final fun contains <T> (element: T of kotlin.collections.CollectionsKt.contains): kotlin.Boolean declared in kotlin.collections.CollectionsKt' type=kotlin.Boolean origin=IN
+            if: CALL 'public final fun contains <T> (element: T of kotlin.collections.contains): kotlin.Boolean declared in kotlin.collections' type=kotlin.Boolean origin=IN
               <T>: kotlin.Number
-              $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.SetsKt.setOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.Set<kotlin.Nothing> origin=null
+              $receiver: CALL 'public final fun setOf <T> (): kotlin.collections.Set<T of kotlin.collections.setOf> declared in kotlin.collections' type=kotlin.collections.Set<kotlin.Nothing> origin=null
                 <T>: kotlin.Nothing
               element: TYPE_OP type=kotlin.Number origin=IMPLICIT_CAST typeOperand=kotlin.Number
                 GET_VAR 'x: kotlin.Any? declared in <root>.test' type=kotlin.Any? origin=null
diff --git a/compiler/testData/ir/irText/expressions/when.kt b/compiler/testData/ir/irText/expressions/when.kt
index 0e65bb376f6..51e7fb95df3 100644
--- a/compiler/testData/ir/irText/expressions/when.kt
+++ b/compiler/testData/ir/irText/expressions/when.kt
@@ -1,7 +1,4 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
-
 object A
 
 fun testWithSubject(x: Any?) =
diff --git a/compiler/testData/ir/irText/expressions/whenReturnUnit.ir.txt b/compiler/testData/ir/irText/expressions/whenReturnUnit.ir.txt
index 23301972dfe..9fe6d9699b9 100644
--- a/compiler/testData/ir/irText/expressions/whenReturnUnit.ir.txt
+++ b/compiler/testData/ir/irText/expressions/whenReturnUnit.ir.txt
@@ -18,11 +18,11 @@ FILE fqName:<root> fileName:/whenReturnUnit.kt
                       if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
                         arg0: GET_VAR 'val tmp_0: kotlin.Int declared in <root>.branch.<anonymous>' type=kotlin.Int origin=null
                         arg1: CONST Int type=kotlin.Int value=1
-                      then: CALL 'public final fun TODO (reason: kotlin.String): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                      then: CALL 'public final fun TODO (reason: kotlin.String): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
                         reason: CONST String type=kotlin.String value="1"
                     BRANCH
                       if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
                         arg0: GET_VAR 'val tmp_0: kotlin.Int declared in <root>.branch.<anonymous>' type=kotlin.Int origin=null
                         arg1: CONST Int type=kotlin.Int value=2
-                      then: CALL 'public final fun TODO (reason: kotlin.String): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                      then: CALL 'public final fun TODO (reason: kotlin.String): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
                         reason: CONST String type=kotlin.String value="2"
diff --git a/compiler/testData/ir/irText/expressions/whenReturnUnit.kt b/compiler/testData/ir/irText/expressions/whenReturnUnit.kt
index f2066b60025..2e29a3849fe 100644
--- a/compiler/testData/ir/irText/expressions/whenReturnUnit.kt
+++ b/compiler/testData/ir/irText/expressions/whenReturnUnit.kt
@@ -1,6 +1,4 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 fun run(block: () -> Unit) {}
 
diff --git a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.ir.txt b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.ir.txt
index 387c9a4cfe2..ab29ce5dd58 100644
--- a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.ir.txt
@@ -28,7 +28,7 @@ FILE fqName:<root> fileName:/AbstractMutableMap.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.MyMap<K of <root>.MyMap, V of <root>.MyMap>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public open fun <get-entries> (): kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> declared in <root>.MyMap'
-            CALL 'public final fun mutableSetOf <T> (): kotlin.collections.MutableSet<T of kotlin.collections.SetsKt.mutableSetOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> origin=null
+            CALL 'public final fun mutableSetOf <T> (): kotlin.collections.MutableSet<T of kotlin.collections.mutableSetOf> declared in kotlin.collections' type=kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> origin=null
               <T>: kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>
     FUN FAKE_OVERRIDE name:clear visibility:public modality:OPEN <> ($this:java.util.AbstractMap<K of java.util.AbstractMap, V of java.util.AbstractMap>) returnType:kotlin.Unit [fake_override]
       overridden:
diff --git a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.ir.txt b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.ir.txt
index 69f0f0442e8..dd62d94ab83 100644
--- a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.ir.txt
@@ -28,7 +28,7 @@ FILE fqName:<root> fileName:/AbstractMutableMap.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.MyMap<K of <root>.MyMap, V of <root>.MyMap>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public open fun <get-entries> (): kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> declared in <root>.MyMap'
-            CALL 'public final fun mutableSetOf <T> (): kotlin.collections.MutableSet<T of kotlin.collections.SetsKt.mutableSetOf> declared in kotlin.collections.SetsKt' type=kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> origin=null
+            CALL 'public final fun mutableSetOf <T> (): kotlin.collections.MutableSet<T of kotlin.collections.mutableSetOf> declared in kotlin.collections' type=kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>> origin=null
               <T>: kotlin.collections.MutableMap.MutableEntry<K of <root>.MyMap, V of <root>.MyMap>
     PROPERTY FAKE_OVERRIDE name:keys visibility:public modality:OPEN [fake_override,val]
       overridden:
diff --git a/compiler/testData/ir/irText/firProblems/AllCandidates.fir.ir.txt b/compiler/testData/ir/irText/firProblems/AllCandidates.fir.ir.txt
index 0e3c06ba2e7..ef42fecb8b4 100644
--- a/compiler/testData/ir/irText/firProblems/AllCandidates.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/AllCandidates.fir.ir.txt
@@ -55,7 +55,7 @@ FILE fqName:<root> fileName:/AllCandidates.kt
     VALUE_PARAMETER name:allCandidates index:0 type:kotlin.collections.Collection<<root>.MyCandidate>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='private final fun allCandidatesResult <A> (allCandidates: kotlin.collections.Collection<<root>.MyCandidate>): @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? declared in <root>'
-        CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.apply, kotlin.Unit>): T of kotlin.StandardKt.apply declared in kotlin.StandardKt' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
+        CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.apply, kotlin.Unit>): T of kotlin.apply declared in kotlin' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
           <T>: @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>?
           $receiver: CALL 'public open fun nameNotFound <R> (): @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] R of <root>.OverloadResolutionResultsImpl.nameNotFound?>? declared in <root>.OverloadResolutionResultsImpl' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
             <R>: A of <root>.allCandidatesResult
@@ -65,7 +65,7 @@ FILE fqName:<root> fileName:/AllCandidates.kt
               BLOCK_BODY
                 CALL 'public open fun setAllCandidates (allCandidates: @[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableCollection<@[FlexibleNullability] <root>.ResolvedCall<@[FlexibleNullability] D of <root>.OverloadResolutionResultsImpl?>?>?): kotlin.Unit declared in <root>.OverloadResolutionResultsImpl' type=kotlin.Unit origin=EQ
                   $this: GET_VAR '$this$apply: @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? declared in <root>.allCandidatesResult.<anonymous>' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
-                  allCandidates: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ResolvedCall<A of <root>.allCandidatesResult>> origin=null
+                  allCandidates: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.ResolvedCall<A of <root>.allCandidatesResult>> origin=null
                     <T>: <root>.MyCandidate
                     <R>: <root>.ResolvedCall<A of <root>.allCandidatesResult>
                     $receiver: GET_VAR 'allCandidates: kotlin.collections.Collection<<root>.MyCandidate> declared in <root>.allCandidatesResult' type=kotlin.collections.Collection<<root>.MyCandidate> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/AllCandidates.ir.txt b/compiler/testData/ir/irText/firProblems/AllCandidates.ir.txt
index 0dc80afce70..39a228c824f 100644
--- a/compiler/testData/ir/irText/firProblems/AllCandidates.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/AllCandidates.ir.txt
@@ -55,7 +55,7 @@ FILE fqName:<root> fileName:/AllCandidates.kt
     VALUE_PARAMETER name:allCandidates index:0 type:kotlin.collections.Collection<<root>.MyCandidate>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='private final fun allCandidatesResult <A> (allCandidates: kotlin.collections.Collection<<root>.MyCandidate>): @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? declared in <root>'
-        CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.apply, kotlin.Unit>): T of kotlin.StandardKt.apply declared in kotlin.StandardKt' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
+        CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.apply, kotlin.Unit>): T of kotlin.apply declared in kotlin' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
           <T>: @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>?
           $receiver: CALL 'public open fun nameNotFound <R> (): @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] R of <root>.OverloadResolutionResultsImpl.nameNotFound?>? declared in <root>.OverloadResolutionResultsImpl' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
             <R>: @[FlexibleNullability] A of <root>.allCandidatesResult?
@@ -67,7 +67,7 @@ FILE fqName:<root> fileName:/AllCandidates.kt
                   <1>: @[FlexibleNullability] A of <root>.allCandidatesResult?
                   $this: TYPE_OP type=<root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?> origin=IMPLICIT_NOTNULL typeOperand=<root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>
                     GET_VAR '$this$apply: @[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? declared in <root>.allCandidatesResult.<anonymous>' type=@[FlexibleNullability] <root>.OverloadResolutionResultsImpl<@[FlexibleNullability] A of <root>.allCandidatesResult?>? origin=null
-                  allCandidates: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ResolvedCall<A of <root>.allCandidatesResult>> origin=null
+                  allCandidates: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.ResolvedCall<A of <root>.allCandidatesResult>> origin=null
                     <T>: <root>.MyCandidate
                     <R>: <root>.ResolvedCall<A of <root>.allCandidatesResult>
                     $receiver: GET_VAR 'allCandidates: kotlin.collections.Collection<<root>.MyCandidate> declared in <root>.allCandidatesResult' type=kotlin.collections.Collection<<root>.MyCandidate> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt b/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
index 37a06671b64..bcae848025a 100644
--- a/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
@@ -436,7 +436,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
             then: BLOCK type=kotlin.Unit origin=null
               CALL 'private final fun <set-data> (<set-?>: kotlin.Array<kotlin.Any?>): kotlin.Unit declared in <root>.ArrayMapImpl' type=kotlin.Unit origin=EQ
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.ensureCapacity' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
-                <set-?>: CALL 'public final fun copyOf <T> (newSize: kotlin.Int): kotlin.Array<T of kotlin.collections.ArraysKt.copyOf?> declared in kotlin.collections.ArraysKt' type=kotlin.Array<kotlin.Any?> origin=null
+                <set-?>: CALL 'public final fun copyOf <T> (newSize: kotlin.Int): kotlin.Array<T of kotlin.collections.copyOf?> declared in kotlin.collections' type=kotlin.Array<kotlin.Any?> origin=null
                   <T>: kotlin.Any?
                   $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                     $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.ensureCapacity' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -486,7 +486,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun get (index: kotlin.Int): T of <root>.ArrayMapImpl? declared in <root>.ArrayMapImpl'
           TYPE_OP type=T of <root>.ArrayMapImpl? origin=CAST typeOperand=T of <root>.ArrayMapImpl?
-            CALL 'public final fun getOrNull <T> (index: kotlin.Int): T of kotlin.collections.ArraysKt.getOrNull? declared in kotlin.collections.ArraysKt' type=kotlin.Any? origin=null
+            CALL 'public final fun getOrNull <T> (index: kotlin.Int): T of kotlin.collections.getOrNull? declared in kotlin.collections' type=kotlin.Any? origin=null
               <T>: kotlin.Any?
               $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.get' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -499,7 +499,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
         RETURN type=kotlin.Nothing from='public open fun copy (): <root>.ArrayMap<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl'
           CONSTRUCTOR_CALL 'private constructor <init> (data: kotlin.Array<kotlin.Any?>) declared in <root>.ArrayMapImpl' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
             <class: T>: T of <root>.ArrayMapImpl
-            data: CALL 'public final fun copyOf <T> (): kotlin.Array<T of kotlin.collections.ArraysKt.copyOf> declared in kotlin.collections.ArraysKt' type=kotlin.Array<kotlin.Any?> origin=null
+            data: CALL 'public final fun copyOf <T> (): kotlin.Array<T of kotlin.collections.copyOf> declared in kotlin.collections' type=kotlin.Array<kotlin.Any?> origin=null
               <T>: kotlin.Any?
               $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.copy' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -653,7 +653,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
       $this: VALUE_PARAMETER name:<this> type:<root>.ArrayMapImpl<T of <root>.ArrayMapImpl>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun entries (): kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> declared in <root>.ArrayMapImpl'
-          CALL 'public final fun mapIndexedNotNull <T, R> (transform: kotlin.Function2<@[ParameterName(name = 'index')] kotlin.Int, T of kotlin.collections.ArraysKt.mapIndexedNotNull, R of kotlin.collections.ArraysKt.mapIndexedNotNull?>): kotlin.collections.List<R of kotlin.collections.ArraysKt.mapIndexedNotNull> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> origin=null
+          CALL 'public final fun mapIndexedNotNull <T, R> (transform: kotlin.Function2<@[ParameterName(name = 'index')] kotlin.Int, T of kotlin.collections.mapIndexedNotNull, R of kotlin.collections.mapIndexedNotNull?>): kotlin.collections.List<R of kotlin.collections.mapIndexedNotNull> declared in kotlin.collections' type=kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> origin=null
             <T>: kotlin.Any?
             <R>: <root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>
             $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
diff --git a/compiler/testData/ir/irText/firProblems/ArrayMap.ir.txt b/compiler/testData/ir/irText/firProblems/ArrayMap.ir.txt
index ef900df7e02..963c13650bb 100644
--- a/compiler/testData/ir/irText/firProblems/ArrayMap.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ArrayMap.ir.txt
@@ -437,7 +437,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
             then: BLOCK type=kotlin.Unit origin=null
               CALL 'private final fun <set-data> (<set-?>: kotlin.Array<kotlin.Any?>): kotlin.Unit declared in <root>.ArrayMapImpl' type=kotlin.Unit origin=EQ
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.ensureCapacity' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
-                <set-?>: CALL 'public final fun copyOf <T> (newSize: kotlin.Int): kotlin.Array<T of kotlin.collections.ArraysKt.copyOf?> declared in kotlin.collections.ArraysKt' type=kotlin.Array<kotlin.Any?> origin=null
+                <set-?>: CALL 'public final fun copyOf <T> (newSize: kotlin.Int): kotlin.Array<T of kotlin.collections.copyOf?> declared in kotlin.collections' type=kotlin.Array<kotlin.Any?> origin=null
                   <T>: kotlin.Any?
                   $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                     $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.ensureCapacity' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -492,7 +492,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun get (index: kotlin.Int): T of <root>.ArrayMapImpl? declared in <root>.ArrayMapImpl'
           TYPE_OP type=T of <root>.ArrayMapImpl? origin=CAST typeOperand=T of <root>.ArrayMapImpl?
-            CALL 'public final fun getOrNull <T> (index: kotlin.Int): T of kotlin.collections.ArraysKt.getOrNull? declared in kotlin.collections.ArraysKt' type=kotlin.Any? origin=null
+            CALL 'public final fun getOrNull <T> (index: kotlin.Int): T of kotlin.collections.getOrNull? declared in kotlin.collections' type=kotlin.Any? origin=null
               <T>: kotlin.Any?
               $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.get' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -505,7 +505,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
         RETURN type=kotlin.Nothing from='public open fun copy (): <root>.ArrayMap<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl'
           CONSTRUCTOR_CALL 'private constructor <init> (data: kotlin.Array<kotlin.Any?>) declared in <root>.ArrayMapImpl' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
             <class: T>: T of <root>.ArrayMapImpl
-            data: CALL 'public final fun copyOf <T> (): kotlin.Array<T of kotlin.collections.ArraysKt.copyOf> declared in kotlin.collections.ArraysKt' type=kotlin.Array<kotlin.Any?> origin=null
+            data: CALL 'public final fun copyOf <T> (): kotlin.Array<T of kotlin.collections.copyOf> declared in kotlin.collections' type=kotlin.Array<kotlin.Any?> origin=null
               <T>: kotlin.Any?
               $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
                 $this: GET_VAR '<this>: <root>.ArrayMapImpl<T of <root>.ArrayMapImpl> declared in <root>.ArrayMapImpl.copy' type=<root>.ArrayMapImpl<T of <root>.ArrayMapImpl> origin=null
@@ -670,7 +670,7 @@ FILE fqName:<root> fileName:/ArrayMap.kt
       $this: VALUE_PARAMETER name:<this> type:<root>.ArrayMapImpl<T of <root>.ArrayMapImpl>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun entries (): kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> declared in <root>.ArrayMapImpl'
-          CALL 'public final fun mapIndexedNotNull <T, R> (transform: kotlin.Function2<@[ParameterName(name = 'index')] kotlin.Int, T of kotlin.collections.ArraysKt.mapIndexedNotNull, R of kotlin.collections.ArraysKt.mapIndexedNotNull?>): kotlin.collections.List<R of kotlin.collections.ArraysKt.mapIndexedNotNull> declared in kotlin.collections.ArraysKt' type=kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> origin=null
+          CALL 'public final fun mapIndexedNotNull <T, R> (transform: kotlin.Function2<@[ParameterName(name = 'index')] kotlin.Int, T of kotlin.collections.mapIndexedNotNull, R of kotlin.collections.mapIndexedNotNull?>): kotlin.collections.List<R of kotlin.collections.mapIndexedNotNull> declared in kotlin.collections' type=kotlin.collections.List<<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>> origin=null
             <T>: kotlin.Any?
             <R>: <root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl>
             $receiver: CALL 'private final fun <get-data> (): kotlin.Array<kotlin.Any?> declared in <root>.ArrayMapImpl' type=kotlin.Array<kotlin.Any?> origin=GET_PROPERTY
diff --git a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.ir.txt b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.ir.txt
index b77c38a5e89..04546ac910a 100644
--- a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.ir.txt
@@ -125,7 +125,7 @@ FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
   PROPERTY name:registrationMap visibility:private modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:registrationMap type:java.util.HashMap<java.lang.reflect.Type, kotlin.Any> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> declared in kotlin.collections.MapsKt' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any> origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> declared in kotlin.collections' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any> origin=null
           <K>: java.lang.reflect.Type
           <V>: kotlin.Any
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-registrationMap> visibility:private modality:FINAL <> () returnType:java.util.HashMap<java.lang.reflect.Type, kotlin.Any>
@@ -171,6 +171,6 @@ FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
                   <class: E>: <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out kotlin.Any?>>>>>
                   container: GET_VAR 'container: <root>.ComponentContainer declared in <root>.resolveClashesIfAny' type=<root>.ComponentContainer origin=null
                   resolver: GET_VAR 'val resolver: <root>.PlatformExtensionsClashResolver<*> declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> origin=null
-                  clashedComponents: CALL 'public final fun toList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.toList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
+                  clashedComponents: CALL 'public final fun toList <T> (): kotlin.collections.List<T of kotlin.collections.toList> declared in kotlin.collections' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
                     <T>: <root>.ComponentDescriptor
                     $receiver: GET_VAR 'val clashedComponents: kotlin.collections.Collection<<root>.ComponentDescriptor> declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.ir.txt b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.ir.txt
index 98a23f32fe8..4f153287182 100644
--- a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.ir.txt
@@ -125,7 +125,7 @@ FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
   PROPERTY name:registrationMap visibility:private modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:registrationMap type:java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.MapsKt.hashMapOf, V of kotlin.collections.MapsKt.hashMapOf> } declared in kotlin.collections.MapsKt' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } origin=null
+        CALL 'public final fun hashMapOf <K, V> (): java.util.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } declared in kotlin.collections' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } origin=null
           <K>: java.lang.reflect.Type
           <V>: kotlin.Any
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-registrationMap> visibility:private modality:FINAL <> () returnType:java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> }
@@ -171,6 +171,6 @@ FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
                   <class: E>: <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out kotlin.Any?>>>>>
                   container: GET_VAR 'container: <root>.ComponentContainer declared in <root>.resolveClashesIfAny' type=<root>.ComponentContainer origin=null
                   resolver: GET_VAR 'val resolver: <root>.PlatformExtensionsClashResolver<*> declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> origin=null
-                  clashedComponents: CALL 'public final fun toList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.toList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
+                  clashedComponents: CALL 'public final fun toList <T> (): kotlin.collections.List<T of kotlin.collections.toList> declared in kotlin.collections' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
                     <T>: <root>.ComponentDescriptor
                     $receiver: GET_VAR 'val clashedComponents: kotlin.collections.Collection<<root>.ComponentDescriptor> declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.fir.ir.txt b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.fir.ir.txt
index 0c6b0d5ab25..0c284318a73 100644
--- a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.fir.ir.txt
@@ -143,7 +143,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
       BLOCK_BODY
         CALL 'public abstract fun <set-typeParameters> (<set-?>: kotlin.collections.List<<root>.IrTypeParameter>): kotlin.Unit declared in <root>.IrTypeParametersContainer' type=kotlin.Unit origin=EQ
           $this: GET_VAR '<this>: <root>.IrTypeParametersContainer declared in <root>.DeepCopyIrTreeWithSymbols.copyTypeParametersFrom' type=<root>.IrTypeParametersContainer origin=null
-          <set-?>: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.IrTypeParameter> origin=null
+          <set-?>: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.IrTypeParameter> origin=null
             <T>: <root>.IrTypeParameter
             <R>: <root>.IrTypeParameter
             $receiver: CALL 'public abstract fun <get-typeParameters> (): kotlin.collections.List<<root>.IrTypeParameter> declared in <root>.IrTypeParametersContainer' type=kotlin.collections.List<<root>.IrTypeParameter> origin=GET_PROPERTY
@@ -167,7 +167,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
                 BLOCK type=kotlin.Unit origin=FOR_LOOP
                   VAR FOR_LOOP_ITERATOR name:tmp_0 type:kotlin.collections.Iterator<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> [val]
                     CALL 'public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.List> declared in kotlin.collections.List' type=kotlin.collections.Iterator<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=FOR_LOOP_ITERATOR
-                      $this: CALL 'public final fun zip <T, R> (other: kotlin.collections.Iterable<R of kotlin.collections.CollectionsKt.zip>): kotlin.collections.List<kotlin.Pair<T of kotlin.collections.CollectionsKt.zip, R of kotlin.collections.CollectionsKt.zip>> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=null
+                      $this: CALL 'public final fun zip <T, R> (other: kotlin.collections.Iterable<R of kotlin.collections.zip>): kotlin.collections.List<kotlin.Pair<T of kotlin.collections.zip, R of kotlin.collections.zip>> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=null
                         <T>: <root>.IrTypeParameter
                         <R>: <root>.IrTypeParameter
                         $receiver: CALL 'public abstract fun <get-typeParameters> (): kotlin.collections.List<<root>.IrTypeParameter> declared in <root>.IrTypeParametersContainer' type=kotlin.collections.List<<root>.IrTypeParameter> origin=GET_PROPERTY
@@ -187,7 +187,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
                       VAR name:otherTypeParameter type:<root>.IrTypeParameter [val]
                         CALL 'public final fun component2 (): B of kotlin.Pair declared in kotlin.Pair' type=<root>.IrTypeParameter origin=COMPONENT_N(index=2)
                           $this: GET_VAR 'val tmp_1: kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter> declared in <root>.DeepCopyIrTreeWithSymbols.copyTypeParametersFrom.<anonymous>' type=kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter> origin=null
-                      CALL 'public final fun mapTo <T, R, C> (destination: C of kotlin.collections.CollectionsKt.mapTo, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.mapTo, R of kotlin.collections.CollectionsKt.mapTo>): C of kotlin.collections.CollectionsKt.mapTo declared in kotlin.collections.CollectionsKt' type=kotlin.collections.MutableList<<root>.IrType> origin=null
+                      CALL 'public final fun mapTo <T, R, C> (destination: C of kotlin.collections.mapTo, transform: kotlin.Function1<T of kotlin.collections.mapTo, R of kotlin.collections.mapTo>): C of kotlin.collections.mapTo declared in kotlin.collections' type=kotlin.collections.MutableList<<root>.IrType> origin=null
                         <T>: <root>.IrType
                         <R>: <root>.IrType
                         <C>: kotlin.collections.MutableList<<root>.IrType>
diff --git a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.ir.txt b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.ir.txt
index f58fd8754b1..641e7b29950 100644
--- a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.ir.txt
@@ -143,7 +143,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
       BLOCK_BODY
         CALL 'public abstract fun <set-typeParameters> (<set-?>: kotlin.collections.List<<root>.IrTypeParameter>): kotlin.Unit declared in <root>.IrTypeParametersContainer' type=kotlin.Unit origin=EQ
           $this: GET_VAR '<this>: <root>.IrTypeParametersContainer declared in <root>.DeepCopyIrTreeWithSymbols.copyTypeParametersFrom' type=<root>.IrTypeParametersContainer origin=null
-          <set-?>: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.IrTypeParameter> origin=null
+          <set-?>: CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.IrTypeParameter> origin=null
             <T>: <root>.IrTypeParameter
             <R>: <root>.IrTypeParameter
             $receiver: CALL 'public abstract fun <get-typeParameters> (): kotlin.collections.List<<root>.IrTypeParameter> declared in <root>.IrTypeParametersContainer' type=kotlin.collections.List<<root>.IrTypeParameter> origin=GET_PROPERTY
@@ -167,7 +167,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
                 BLOCK type=kotlin.Unit origin=FOR_LOOP
                   VAR FOR_LOOP_ITERATOR name:tmp_0 type:kotlin.collections.Iterator<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> [val]
                     CALL 'public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.List> declared in kotlin.collections.List' type=kotlin.collections.Iterator<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=FOR_LOOP_ITERATOR
-                      $this: CALL 'public final fun zip <T, R> (other: kotlin.collections.Iterable<R of kotlin.collections.CollectionsKt.zip>): kotlin.collections.List<kotlin.Pair<T of kotlin.collections.CollectionsKt.zip, R of kotlin.collections.CollectionsKt.zip>> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=null
+                      $this: CALL 'public final fun zip <T, R> (other: kotlin.collections.Iterable<R of kotlin.collections.zip>): kotlin.collections.List<kotlin.Pair<T of kotlin.collections.zip, R of kotlin.collections.zip>> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter>> origin=null
                         <T>: <root>.IrTypeParameter
                         <R>: <root>.IrTypeParameter
                         $receiver: CALL 'public abstract fun <get-typeParameters> (): kotlin.collections.List<<root>.IrTypeParameter> declared in <root>.IrTypeParametersContainer' type=kotlin.collections.List<<root>.IrTypeParameter> origin=GET_PROPERTY
@@ -189,7 +189,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
                           $this: GET_VAR 'val tmp_1: kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter> declared in <root>.DeepCopyIrTreeWithSymbols.copyTypeParametersFrom.<anonymous>' type=kotlin.Pair<<root>.IrTypeParameter, <root>.IrTypeParameter> origin=null
                       BLOCK type=kotlin.Unit origin=null
                         TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-                          CALL 'public final fun mapTo <T, R, C> (destination: C of kotlin.collections.CollectionsKt.mapTo, transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.mapTo, R of kotlin.collections.CollectionsKt.mapTo>): C of kotlin.collections.CollectionsKt.mapTo declared in kotlin.collections.CollectionsKt' type=kotlin.collections.MutableList<<root>.IrType> origin=null
+                          CALL 'public final fun mapTo <T, R, C> (destination: C of kotlin.collections.mapTo, transform: kotlin.Function1<T of kotlin.collections.mapTo, R of kotlin.collections.mapTo>): C of kotlin.collections.mapTo declared in kotlin.collections' type=kotlin.collections.MutableList<<root>.IrType> origin=null
                             <T>: <root>.IrType
                             <R>: <root>.IrType
                             <C>: kotlin.collections.MutableList<<root>.IrType>
diff --git a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt
index 8d3eb59d6ff..91079a9fe48 100644
--- a/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt
+++ b/compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt
@@ -1,7 +1,5 @@
 // WITH_STDLIB
 // FULL_JDK
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 interface IrType
 
diff --git a/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.fir.ir.txt b/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.fir.ir.txt
index 326e8afff80..1eaa0fbd842 100644
--- a/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.fir.ir.txt
@@ -168,7 +168,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
       VALUE_PARAMETER name:name index:0 type:kotlin.String?
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun get (name: kotlin.String?): <root>.ImplicitReceiverValue<*>? declared in <root>.PersistentImplicitReceiverStack'
-          CALL 'public final fun lastOrNull <T> (): T of kotlin.collections.CollectionsKt.lastOrNull? declared in kotlin.collections.CollectionsKt' type=<root>.ImplicitReceiverValue<*>? origin=null
+          CALL 'public final fun lastOrNull <T> (): T of kotlin.collections.lastOrNull? declared in kotlin.collections' type=<root>.ImplicitReceiverValue<*>? origin=null
             <T>: <root>.ImplicitReceiverValue<*>
             $receiver: CALL 'private final fun <get-stack> (): kotlin.collections.List<<root>.ImplicitReceiverValue<*>> declared in <root>.PersistentImplicitReceiverStack' type=kotlin.collections.List<<root>.ImplicitReceiverValue<*>> origin=GET_PROPERTY
               $this: GET_VAR '<this>: <root>.PersistentImplicitReceiverStack declared in <root>.PersistentImplicitReceiverStack.get' type=<root>.PersistentImplicitReceiverStack origin=null
@@ -203,7 +203,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
   FUN name:foo visibility:public modality:FINAL <> (stack:<root>.PersistentImplicitReceiverStack) returnType:kotlin.Unit
     VALUE_PARAMETER name:stack index:0 type:<root>.PersistentImplicitReceiverStack
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: <root>.ImplicitReceiverValue<*>
         $receiver: GET_VAR 'stack: <root>.PersistentImplicitReceiverStack declared in <root>.foo' type=<root>.PersistentImplicitReceiverStack origin=null
         action: FUN_EXPR type=kotlin.Function1<<root>.ImplicitReceiverValue<*>, kotlin.Unit> origin=LAMBDA
@@ -220,7 +220,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
     BLOCK_BODY
       VAR name:stack type:<root>.PersistentImplicitReceiverStack [val]
         CONSTRUCTOR_CALL 'public constructor <init> (stack: kotlin.collections.List<<root>.ImplicitReceiverValue<*>>) declared in <root>.PersistentImplicitReceiverStack' type=<root>.PersistentImplicitReceiverStack origin=null
-          stack: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ImplicitReceiverValue<kotlin.Nothing>> origin=null
+          stack: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<<root>.ImplicitReceiverValue<kotlin.Nothing>> origin=null
             <T>: <root>.ImplicitReceiverValue<kotlin.Nothing>
             elements: VARARG type=kotlin.Array<out <root>.ImplicitReceiverValue<kotlin.Nothing>> varargElementType=<root>.ImplicitReceiverValue<kotlin.Nothing>
               CONSTRUCTOR_CALL 'public constructor <init> (boundSymbol: S of <root>.ImplicitReceiverValue?, type: kotlin.String) declared in <root>.ImplicitReceiverValue' type=<root>.ImplicitReceiverValue<kotlin.Nothing> origin=null
@@ -236,7 +236,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
         CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
           $this: CALL 'public open fun <get-type> (): kotlin.String declared in <root>.ImplicitReceiverValue' type=kotlin.String origin=GET_PROPERTY
-            $this: CALL 'public final fun first <T> (): T of kotlin.collections.CollectionsKt.first declared in kotlin.collections.CollectionsKt' type=<root>.ImplicitReceiverValue<*> origin=null
+            $this: CALL 'public final fun first <T> (): T of kotlin.collections.first declared in kotlin.collections' type=<root>.ImplicitReceiverValue<*> origin=null
               <T>: <root>.ImplicitReceiverValue<*>
               $receiver: GET_VAR 'val stack: <root>.PersistentImplicitReceiverStack declared in <root>.box' type=<root>.PersistentImplicitReceiverStack origin=null
           other: BLOCK type=kotlin.String? origin=SAFE_CALL
diff --git a/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.ir.txt b/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.ir.txt
index 7a96c2f1b86..c4cda1d19e5 100644
--- a/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ImplicitReceiverStack.ir.txt
@@ -168,7 +168,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
       VALUE_PARAMETER name:name index:0 type:kotlin.String?
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun get (name: kotlin.String?): <root>.ImplicitReceiverValue<*>? declared in <root>.PersistentImplicitReceiverStack'
-          CALL 'public final fun lastOrNull <T> (): T of kotlin.collections.CollectionsKt.lastOrNull? declared in kotlin.collections.CollectionsKt' type=<root>.ImplicitReceiverValue<*>? origin=null
+          CALL 'public final fun lastOrNull <T> (): T of kotlin.collections.lastOrNull? declared in kotlin.collections' type=<root>.ImplicitReceiverValue<*>? origin=null
             <T>: <root>.ImplicitReceiverValue<*>
             $receiver: CALL 'private final fun <get-stack> (): kotlin.collections.List<<root>.ImplicitReceiverValue<*>> declared in <root>.PersistentImplicitReceiverStack' type=kotlin.collections.List<<root>.ImplicitReceiverValue<*>> origin=GET_PROPERTY
               $this: GET_VAR '<this>: <root>.PersistentImplicitReceiverStack declared in <root>.PersistentImplicitReceiverStack.get' type=<root>.PersistentImplicitReceiverStack origin=null
@@ -205,7 +205,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
   FUN name:foo visibility:public modality:FINAL <> (stack:<root>.PersistentImplicitReceiverStack) returnType:kotlin.Unit
     VALUE_PARAMETER name:stack index:0 type:<root>.PersistentImplicitReceiverStack
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: <root>.ImplicitReceiverValue<*>
         $receiver: GET_VAR 'stack: <root>.PersistentImplicitReceiverStack declared in <root>.foo' type=<root>.PersistentImplicitReceiverStack origin=null
         action: FUN_EXPR type=kotlin.Function1<<root>.ImplicitReceiverValue<*>, kotlin.Unit> origin=LAMBDA
@@ -222,7 +222,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
     BLOCK_BODY
       VAR name:stack type:<root>.PersistentImplicitReceiverStack [val]
         CONSTRUCTOR_CALL 'public constructor <init> (stack: kotlin.collections.List<<root>.ImplicitReceiverValue<*>>) declared in <root>.PersistentImplicitReceiverStack' type=<root>.PersistentImplicitReceiverStack origin=null
-          stack: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.ImplicitReceiverValue<kotlin.Nothing>> origin=null
+          stack: CALL 'public final fun listOf <T> (vararg elements: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<<root>.ImplicitReceiverValue<kotlin.Nothing>> origin=null
             <T>: <root>.ImplicitReceiverValue<kotlin.Nothing>
             elements: VARARG type=kotlin.Array<out <root>.ImplicitReceiverValue<kotlin.Nothing>> varargElementType=<root>.ImplicitReceiverValue<kotlin.Nothing>
               CONSTRUCTOR_CALL 'public constructor <init> (boundSymbol: S of <root>.ImplicitReceiverValue?, type: kotlin.String) declared in <root>.ImplicitReceiverValue' type=<root>.ImplicitReceiverValue<kotlin.Nothing> origin=null
@@ -238,7 +238,7 @@ FILE fqName:<root> fileName:/ImplicitReceiverStack.kt
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
         CALL 'public final fun plus (other: kotlin.Any?): kotlin.String declared in kotlin.String' type=kotlin.String origin=PLUS
           $this: CALL 'public open fun <get-type> (): kotlin.String declared in <root>.ImplicitReceiverValue' type=kotlin.String origin=GET_PROPERTY
-            $this: CALL 'public final fun first <T> (): T of kotlin.collections.CollectionsKt.first declared in kotlin.collections.CollectionsKt' type=<root>.ImplicitReceiverValue<*> origin=null
+            $this: CALL 'public final fun first <T> (): T of kotlin.collections.first declared in kotlin.collections' type=<root>.ImplicitReceiverValue<*> origin=null
               <T>: <root>.ImplicitReceiverValue<*>
               $receiver: GET_VAR 'val stack: <root>.PersistentImplicitReceiverStack declared in <root>.box' type=<root>.PersistentImplicitReceiverStack origin=null
           other: BLOCK type=kotlin.String? origin=SAFE_CALL
diff --git a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.fir.ir.txt b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.fir.ir.txt
index a7714ce1655..72a295c0b61 100644
--- a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.fir.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                 <T>: kotlin.String
                 <R>: kotlin.Nothing
                 $receiver: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.foo' type=kotlin.String? origin=null
@@ -42,7 +42,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing? origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing? origin=null
                 <T>: kotlin.String
                 <R>: kotlin.Nothing?
                 $receiver: GET_VAR 'val tmp_1: kotlin.String? declared in <root>.bar' type=kotlin.String? origin=null
@@ -62,7 +62,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
                               then: CONST Null type=kotlin.Nothing? value=null
                             BRANCH
                               if: CONST Boolean type=kotlin.Boolean value=true
-                              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                                 <T>: kotlin.String
                                 <R>: kotlin.Nothing
                                 $receiver: GET_VAR 'val tmp_2: kotlin.String? declared in <root>.bar.<anonymous>' type=kotlin.String? origin=null
@@ -91,7 +91,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
                 then: CONST Null type=kotlin.Nothing? value=null
               BRANCH
                 if: CONST Boolean type=kotlin.Boolean value=true
-                then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                   <T>: kotlin.String
                   <R>: kotlin.Nothing
                   $receiver: GET_VAR 'val tmp_3: kotlin.String? declared in <root>.<get-baz>' type=kotlin.String? origin=null
diff --git a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.ir.txt b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.ir.txt
index a7714ce1655..72a295c0b61 100644
--- a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                 <T>: kotlin.String
                 <R>: kotlin.Nothing
                 $receiver: GET_VAR 'val tmp_0: kotlin.String? declared in <root>.foo' type=kotlin.String? origin=null
@@ -42,7 +42,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing? origin=null
+              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing? origin=null
                 <T>: kotlin.String
                 <R>: kotlin.Nothing?
                 $receiver: GET_VAR 'val tmp_1: kotlin.String? declared in <root>.bar' type=kotlin.String? origin=null
@@ -62,7 +62,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
                               then: CONST Null type=kotlin.Nothing? value=null
                             BRANCH
                               if: CONST Boolean type=kotlin.Boolean value=true
-                              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                              then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                                 <T>: kotlin.String
                                 <R>: kotlin.Nothing
                                 $receiver: GET_VAR 'val tmp_2: kotlin.String? declared in <root>.bar.<anonymous>' type=kotlin.String? origin=null
@@ -91,7 +91,7 @@ FILE fqName:<root> fileName:/SafeLetWithReturn.kt
                 then: CONST Null type=kotlin.Nothing? value=null
               BRANCH
                 if: CONST Boolean type=kotlin.Boolean value=true
-                then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=kotlin.Nothing origin=null
                   <T>: kotlin.String
                   <R>: kotlin.Nothing
                   $receiver: GET_VAR 'val tmp_3: kotlin.String? declared in <root>.<get-baz>' type=kotlin.String? origin=null
diff --git a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.kt b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.kt
index 3b9727b2488..1bf57eb6a51 100644
--- a/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.kt
+++ b/compiler/testData/ir/irText/firProblems/SafeLetWithReturn.kt
@@ -1,6 +1,4 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 fun foo(s: String?): String {
     s?.let { it ->
diff --git a/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.ir.txt b/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.ir.txt
index 412b336174d..c788000f9fa 100644
--- a/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.ir.txt
@@ -44,7 +44,7 @@ FILE fqName:<root> fileName:/SimpleTypeMarker.kt
       $this: VALUE_PARAMETER name:<this> type:<root>.User
       $receiver: VALUE_PARAMETER name:<this> type:<root>.SimpleTypeMarker
       BLOCK_BODY
-        CALL 'public final fun require (value: kotlin.Boolean): kotlin.Unit declared in kotlin.PreconditionsKt' type=kotlin.Unit origin=null
+        CALL 'public final fun require (value: kotlin.Boolean): kotlin.Unit declared in kotlin' type=kotlin.Unit origin=null
           value: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.SimpleType
             GET_VAR '<this>: <root>.SimpleTypeMarker declared in <root>.User.bar' type=<root>.SimpleTypeMarker origin=null
         RETURN type=kotlin.Nothing from='public open fun bar (): kotlin.String declared in <root>.User'
@@ -74,7 +74,7 @@ FILE fqName:<root> fileName:/SimpleTypeMarker.kt
       $this: VALUE_PARAMETER name:<this> type:<root>.UserImpl
       $receiver: VALUE_PARAMETER name:<this> type:<root>.SimpleTypeMarker
       BLOCK_BODY
-        CALL 'public final fun require (value: kotlin.Boolean): kotlin.Unit declared in kotlin.PreconditionsKt' type=kotlin.Unit origin=null
+        CALL 'public final fun require (value: kotlin.Boolean): kotlin.Unit declared in kotlin' type=kotlin.Unit origin=null
           value: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.SimpleType
             GET_VAR '<this>: <root>.SimpleTypeMarker declared in <root>.UserImpl.bar' type=<root>.SimpleTypeMarker origin=null
         RETURN type=kotlin.Nothing from='public final fun bar (): kotlin.String declared in <root>.UserImpl'
diff --git a/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.kt b/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.kt
index 35549f1dea1..7eceda2ad85 100644
--- a/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.kt
+++ b/compiler/testData/ir/irText/firProblems/SimpleTypeMarker.kt
@@ -1,7 +1,5 @@
 // FIR_IDENTICAL
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 interface SimpleTypeMarker
 
diff --git a/compiler/testData/ir/irText/firProblems/SyntheticSetterType.ir.txt b/compiler/testData/ir/irText/firProblems/SyntheticSetterType.ir.txt
index 01455b58d49..e03dfe0e3c7 100644
--- a/compiler/testData/ir/irText/firProblems/SyntheticSetterType.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/SyntheticSetterType.ir.txt
@@ -4,5 +4,5 @@ FILE fqName:<root> fileName:/SyntheticSetterType.kt
     BLOCK_BODY
       CALL 'public open fun setOverriddenDescriptors (overriddenDescriptors: @[EnhancedNullability] @[FlexibleMutability] kotlin.collections.MutableCollection<out @[FlexibleNullability] <root>.CallableMemberDescriptor?>): kotlin.Unit declared in <root>.PropertyDescriptorImpl' type=kotlin.Unit origin=EQ
         $this: GET_VAR 'descriptor: <root>.PropertyDescriptorImpl declared in <root>.foo' type=<root>.PropertyDescriptorImpl origin=null
-        overriddenDescriptors: CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.CollectionsKt.emptyList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<@[FlexibleNullability] <root>.PropertyDescriptor?> origin=null
+        overriddenDescriptors: CALL 'public final fun emptyList <T> (): kotlin.collections.List<T of kotlin.collections.emptyList> declared in kotlin.collections' type=kotlin.collections.List<@[FlexibleNullability] <root>.PropertyDescriptor?> origin=null
           <T>: @[FlexibleNullability] <root>.PropertyDescriptor?
diff --git a/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.fir.ir.txt b/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.fir.ir.txt
index d4c5ac1e225..3ba76730c07 100644
--- a/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.fir.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/coercionToUnitForNestedWhen.kt
       RETURN type=kotlin.Nothing from='private final fun nextChar (): kotlin.Char? declared in <root>'
         BLOCK type=kotlin.Char? origin=SAFE_CALL
           VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:kotlin.Int? [val]
-            CALL 'public final fun takeUnless <T> (predicate: kotlin.Function1<T of kotlin.StandardKt.takeUnless, kotlin.Boolean>): T of kotlin.StandardKt.takeUnless? declared in kotlin.StandardKt' type=kotlin.Int? origin=null
+            CALL 'public final fun takeUnless <T> (predicate: kotlin.Function1<T of kotlin.takeUnless, kotlin.Boolean>): T of kotlin.takeUnless? declared in kotlin' type=kotlin.Int? origin=null
               <T>: kotlin.Int
               $receiver: CALL 'public open fun read (): kotlin.Int declared in java.io.Reader' type=kotlin.Int origin=null
                 $this: GET_VAR '<this>: java.io.Reader declared in <root>.nextChar' type=java.io.Reader origin=null
@@ -77,7 +77,7 @@ FILE fqName:<root> fileName:/coercionToUnitForNestedWhen.kt
                       then: CONST Null type=kotlin.Nothing? value=null
                     BRANCH
                       if: CONST Boolean type=kotlin.Boolean value=true
-                      then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=@[FlexibleNullability] java.lang.StringBuilder? origin=null
+                      then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=@[FlexibleNullability] java.lang.StringBuilder? origin=null
                         <T>: kotlin.Char
                         <R>: @[FlexibleNullability] java.lang.StringBuilder?
                         $receiver: GET_VAR 'val tmp_1: kotlin.Char? declared in <root>.consumeRestOfQuotedSequence' type=kotlin.Char? origin=null
diff --git a/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.ir.txt b/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.ir.txt
index 51fe957b26a..6c082b3b0c5 100644
--- a/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/coercionToUnitForNestedWhen.ir.txt
@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/coercionToUnitForNestedWhen.kt
       RETURN type=kotlin.Nothing from='private final fun nextChar (): kotlin.Char? declared in <root>'
         BLOCK type=kotlin.Char? origin=SAFE_CALL
           VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:kotlin.Int? [val]
-            CALL 'public final fun takeUnless <T> (predicate: kotlin.Function1<T of kotlin.StandardKt.takeUnless, kotlin.Boolean>): T of kotlin.StandardKt.takeUnless? declared in kotlin.StandardKt' type=kotlin.Int? origin=null
+            CALL 'public final fun takeUnless <T> (predicate: kotlin.Function1<T of kotlin.takeUnless, kotlin.Boolean>): T of kotlin.takeUnless? declared in kotlin' type=kotlin.Int? origin=null
               <T>: kotlin.Int
               $receiver: CALL 'public open fun read (): kotlin.Int declared in java.io.Reader' type=kotlin.Int origin=null
                 $this: GET_VAR '<this>: java.io.Reader declared in <root>.nextChar' type=java.io.Reader origin=null
@@ -77,7 +77,7 @@ FILE fqName:<root> fileName:/coercionToUnitForNestedWhen.kt
                       then: CONST Null type=kotlin.Nothing? value=null
                     BRANCH
                       if: CONST Boolean type=kotlin.Boolean value=true
-                      then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.StandardKt.let, R of kotlin.StandardKt.let>): R of kotlin.StandardKt.let declared in kotlin.StandardKt' type=@[FlexibleNullability] java.lang.StringBuilder? origin=null
+                      then: CALL 'public final fun let <T, R> (block: kotlin.Function1<T of kotlin.let, R of kotlin.let>): R of kotlin.let declared in kotlin' type=@[FlexibleNullability] java.lang.StringBuilder? origin=null
                         <T>: kotlin.Char
                         <R>: @[FlexibleNullability] java.lang.StringBuilder?
                         $receiver: GET_VAR 'val tmp_1: kotlin.Char? declared in <root>.consumeRestOfQuotedSequence' type=kotlin.Char? origin=null
diff --git a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.fir.ir.txt b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.fir.ir.txt
index 5ac2b7f7c49..76871444f01 100644
--- a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.fir.ir.txt
@@ -20,7 +20,7 @@ FILE fqName:<root> fileName:/inapplicableCollectionSet.kt
     PROPERTY name:INSTANCES visibility:private modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:INSTANCES type:kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=null
+          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=null
             <K>: kotlin.String
             <V>: <root>.Flaf
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-INSTANCES> visibility:private modality:FINAL <> ($this:<root>.Flaf) returnType:kotlin.collections.MutableMap<kotlin.String, <root>.Flaf>
@@ -61,7 +61,7 @@ FILE fqName:<root> fileName:/inapplicableCollectionSet.kt
                     SET_VAR 'var result: <root>.Flaf? declared in <root>.Flaf.forJavaName' type=kotlin.Unit origin=EQ
                       CONSTRUCTOR_CALL 'public constructor <init> (javaName: kotlin.String) declared in <root>.Flaf' type=<root>.Flaf origin=null
                         javaName: GET_VAR 'javaName: kotlin.String declared in <root>.Flaf.forJavaName' type=kotlin.String origin=null
-              CALL 'public final fun set <K, V> (key: K of kotlin.collections.MapsKt.set, value: V of kotlin.collections.MapsKt.set): kotlin.Unit declared in kotlin.collections.MapsKt' type=kotlin.Unit origin=null
+              CALL 'public final fun set <K, V> (key: K of kotlin.collections.set, value: V of kotlin.collections.set): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
                 <K>: kotlin.String
                 <V>: <root>.Flaf
                 $receiver: CALL 'private final fun <get-INSTANCES> (): kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> declared in <root>.Flaf' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=GET_PROPERTY
diff --git a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.ir.txt b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.ir.txt
index 74d3244859a..76c97809453 100644
--- a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.ir.txt
@@ -20,7 +20,7 @@ FILE fqName:<root> fileName:/inapplicableCollectionSet.kt
     PROPERTY name:INSTANCES visibility:private modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:INSTANCES type:kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=null
+          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=null
             <K>: kotlin.String
             <V>: <root>.Flaf
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-INSTANCES> visibility:private modality:FINAL <> ($this:<root>.Flaf) returnType:kotlin.collections.MutableMap<kotlin.String, <root>.Flaf>
@@ -61,7 +61,7 @@ FILE fqName:<root> fileName:/inapplicableCollectionSet.kt
                     SET_VAR 'var result: <root>.Flaf? declared in <root>.Flaf.forJavaName' type=kotlin.Unit origin=EQ
                       CONSTRUCTOR_CALL 'public constructor <init> (javaName: kotlin.String) declared in <root>.Flaf' type=<root>.Flaf origin=null
                         javaName: GET_VAR 'javaName: kotlin.String declared in <root>.Flaf.forJavaName' type=kotlin.String origin=null
-              CALL 'public final fun set <K, V> (key: K of kotlin.collections.MapsKt.set, value: V of kotlin.collections.MapsKt.set): kotlin.Unit declared in kotlin.collections.MapsKt' type=kotlin.Unit origin=EQ
+              CALL 'public final fun set <K, V> (key: K of kotlin.collections.set, value: V of kotlin.collections.set): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=EQ
                 <K>: kotlin.String
                 <V>: <root>.Flaf
                 $receiver: CALL 'private final fun <get-INSTANCES> (): kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> declared in <root>.Flaf' type=kotlin.collections.MutableMap<kotlin.String, <root>.Flaf> origin=GET_PROPERTY
diff --git a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.kt b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.kt
index 71df8666fa3..04369e7cf0d 100644
--- a/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.kt
+++ b/compiler/testData/ir/irText/firProblems/inapplicableCollectionSet.kt
@@ -1,7 +1,5 @@
 // WITH_STDLIB
 // FULL_JDK
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 class Flaf(val javaName: String) {
 
diff --git a/compiler/testData/ir/irText/firProblems/kt19251.fir.ir.txt b/compiler/testData/ir/irText/firProblems/kt19251.fir.ir.txt
index b21e2c678a2..d97d4293c12 100644
--- a/compiler/testData/ir/irText/firProblems/kt19251.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/kt19251.fir.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/test.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       VAR name:map type:kotlin.collections.MutableMap<<root>.Fun, kotlin.String> [val]
-        CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<<root>.Fun, kotlin.String> origin=null
+        CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<<root>.Fun, kotlin.String> origin=null
           <K>: <root>.Fun
           <V>: kotlin.String
       VAR name:fn type:<root>.Fun [val]
@@ -11,7 +11,7 @@ FILE fqName:<root> fileName:/test.kt
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:@[FlexibleNullability] kotlin.String?) returnType:@[FlexibleNullability] kotlin.String?
               VALUE_PARAMETER name:it index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
         TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
           CALL 'public open fun computeIfAbsent (p0: @[EnhancedNullability] K of kotlin.collections.MutableMap, p1: @[EnhancedNullability] java.util.function.Function<in @[EnhancedNullability] K of kotlin.collections.MutableMap, out @[EnhancedNullability] V of kotlin.collections.MutableMap>): @[EnhancedNullability] V of kotlin.collections.MutableMap declared in kotlin.collections.MutableMap' type=@[EnhancedNullability] kotlin.String origin=null
diff --git a/compiler/testData/ir/irText/firProblems/kt19251.ir.txt b/compiler/testData/ir/irText/firProblems/kt19251.ir.txt
index a08e4a00f5e..a806d2e391d 100644
--- a/compiler/testData/ir/irText/firProblems/kt19251.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/kt19251.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/test.kt
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       VAR name:map type:kotlin.collections.MutableMap<<root>.Fun, kotlin.String> [val]
-        CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<<root>.Fun, kotlin.String> origin=null
+        CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<<root>.Fun, kotlin.String> origin=null
           <K>: <root>.Fun
           <V>: kotlin.String
       VAR name:fn type:<root>.Fun [val]
@@ -12,7 +12,7 @@ FILE fqName:<root> fileName:/test.kt
               VALUE_PARAMETER name:it index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.box'
-                  CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+                  CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
       RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in <root>'
         TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
           CALL 'public open fun computeIfAbsent (p0: @[EnhancedNullability] K of kotlin.collections.MutableMap, p1: @[EnhancedNullability] java.util.function.Function<in @[EnhancedNullability] K of kotlin.collections.MutableMap, out @[EnhancedNullability] V of kotlin.collections.MutableMap>): @[EnhancedNullability] V of kotlin.collections.MutableMap declared in kotlin.collections.MutableMap' type=@[EnhancedNullability] kotlin.String origin=null
diff --git a/compiler/testData/ir/irText/firProblems/putIfAbsent.fir.ir.txt b/compiler/testData/ir/irText/firProblems/putIfAbsent.fir.ir.txt
index ec4087936de..125bec6f4fe 100644
--- a/compiler/testData/ir/irText/firProblems/putIfAbsent.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/putIfAbsent.fir.ir.txt
@@ -12,7 +12,7 @@ FILE fqName:<root> fileName:/putIfAbsent.kt
       VALUE_PARAMETER name:y index:1 type:T of <root>.Owner.foo
       BLOCK_BODY
         VAR name:map type:kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> [val]
-          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> origin=null
+          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> origin=null
             <K>: T of <root>.Owner.foo
             <V>: T of <root>.Owner.foo
         TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
diff --git a/compiler/testData/ir/irText/firProblems/putIfAbsent.ir.txt b/compiler/testData/ir/irText/firProblems/putIfAbsent.ir.txt
index 74bf0651784..84021f5786c 100644
--- a/compiler/testData/ir/irText/firProblems/putIfAbsent.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/putIfAbsent.ir.txt
@@ -12,7 +12,7 @@ FILE fqName:<root> fileName:/putIfAbsent.kt
       VALUE_PARAMETER name:y index:1 type:T of <root>.Owner.foo
       BLOCK_BODY
         VAR name:map type:kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> [val]
-          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.mutableMapOf, V of kotlin.collections.MapsKt.mutableMapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> origin=null
+          CALL 'public final fun mutableMapOf <K, V> (): kotlin.collections.MutableMap<K of kotlin.collections.mutableMapOf, V of kotlin.collections.mutableMapOf> declared in kotlin.collections' type=kotlin.collections.MutableMap<T of <root>.Owner.foo, T of <root>.Owner.foo> origin=null
             <K>: T of <root>.Owner.foo
             <V>: T of <root>.Owner.foo
         TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
diff --git a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.fir.ir.txt b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.fir.ir.txt
index 63f55bd99f3..94bb06c7178 100644
--- a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.fir.ir.txt
@@ -46,10 +46,10 @@ FILE fqName:<root> fileName:/recursiveCapturedTypeInPropertyReference.kt
       VALUE_PARAMETER name:list index:0 type:kotlin.collections.List<kotlin.Any>
       BLOCK_BODY
         VAR name:result type:kotlin.collections.List<<root>.AbstractSymbol<*>> [val]
-          CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.AbstractSymbol<*>> origin=null
+          CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.AbstractSymbol<*>> origin=null
             <T>: <root>.Recursive<*>
             <R>: <root>.AbstractSymbol<*>
-            $receiver: CALL 'public final fun filterIsInstance <R> (): kotlin.collections.List<R of kotlin.collections.CollectionsKt.filterIsInstance> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.Recursive<*>> origin=null
+            $receiver: CALL 'public final fun filterIsInstance <R> (): kotlin.collections.List<R of kotlin.collections.filterIsInstance> declared in kotlin.collections' type=kotlin.collections.List<<root>.Recursive<*>> origin=null
               <R>: <root>.Recursive<*>
               $receiver: GET_VAR 'list: kotlin.collections.List<kotlin.Any> declared in <root>.AbstractSymbol.foo' type=kotlin.collections.List<kotlin.Any> origin=null
             transform: PROPERTY_REFERENCE 'public abstract symbol: <root>.AbstractSymbol<R of <root>.Recursive>' field=null getter='public abstract fun <get-symbol> (): <root>.AbstractSymbol<R of <root>.Recursive> declared in <root>.Recursive' setter=null type=kotlin.reflect.KProperty1<<root>.Recursive<*>, <root>.AbstractSymbol<out kotlin.Any>> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.ir.txt b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.ir.txt
index d8f8cf85b0a..d892da23a9f 100644
--- a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.ir.txt
@@ -46,10 +46,10 @@ FILE fqName:<root> fileName:/recursiveCapturedTypeInPropertyReference.kt
       VALUE_PARAMETER name:list index:0 type:kotlin.collections.List<kotlin.Any>
       BLOCK_BODY
         VAR name:result type:kotlin.collections.List<<root>.AbstractSymbol<out <root>.Recursive<*>>> [val]
-          CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.map, R of kotlin.collections.CollectionsKt.map>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.map> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<<root>.AbstractSymbol<out <root>.Recursive<*>>> origin=null
+          CALL 'public final fun map <T, R> (transform: kotlin.Function1<T of kotlin.collections.map, R of kotlin.collections.map>): kotlin.collections.List<R of kotlin.collections.map> declared in kotlin.collections' type=kotlin.collections.List<<root>.AbstractSymbol<out <root>.Recursive<*>>> origin=null
             <T>: <root>.Recursive<*>
             <R>: <root>.AbstractSymbol<out <root>.Recursive<*>>
-            $receiver: CALL 'public final fun filterIsInstance <R> (): kotlin.collections.List<@[NoInfer] R of kotlin.collections.CollectionsKt.filterIsInstance> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<@[NoInfer] <root>.Recursive<*>> origin=null
+            $receiver: CALL 'public final fun filterIsInstance <R> (): kotlin.collections.List<@[NoInfer] R of kotlin.collections.filterIsInstance> declared in kotlin.collections' type=kotlin.collections.List<@[NoInfer] <root>.Recursive<*>> origin=null
               <R>: <root>.Recursive<*>
               $receiver: GET_VAR 'list: kotlin.collections.List<kotlin.Any> declared in <root>.AbstractSymbol.foo' type=kotlin.collections.List<kotlin.Any> origin=null
             transform: PROPERTY_REFERENCE 'public abstract symbol: <root>.AbstractSymbol<R of <root>.Recursive>' field=null getter='public abstract fun <get-symbol> (): <root>.AbstractSymbol<R of <root>.Recursive> declared in <root>.Recursive' setter=null type=kotlin.reflect.KProperty1<<root>.Recursive<*>, <root>.AbstractSymbol<out <root>.Recursive<*>>> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.kt b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.kt
index 726d34637d0..27fc49de69c 100644
--- a/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.kt
+++ b/compiler/testData/ir/irText/firProblems/recursiveCapturedTypeInPropertyReference.kt
@@ -1,7 +1,5 @@
 // WITH_STDLIB
 // FULL_JDK
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 interface Something
 
diff --git a/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.fir.ir.txt b/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.fir.ir.txt
index 6cd9fcc598e..8bd002dddda 100644
--- a/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.fir.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/thisInEnumConstructor.kt
     CONSTRUCTOR visibility:private <> (myName:kotlin.String) returnType:<root>.EE [primary]
       VALUE_PARAMETER name:myName index:0 type:kotlin.String
         EXPRESSION_BODY
-          CALL 'public final fun lowercase (): kotlin.String declared in kotlin.text.StringsKt' type=kotlin.String origin=null
+          CALL 'public final fun lowercase (): kotlin.String declared in kotlin.text' type=kotlin.String origin=null
             $receiver: CALL 'public open fun toString (): kotlin.String declared in kotlin.Enum.Companion' type=kotlin.String origin=null
               $this: GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Companion modality:FINAL visibility:public [companion] superTypes:[kotlin.Any]' type=kotlin.Enum.Companion
       BLOCK_BODY
diff --git a/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.ir.txt b/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.ir.txt
index e21e5fea4cb..777e4bd052a 100644
--- a/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/thisInEnumConstructor.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/thisInEnumConstructor.kt
     CONSTRUCTOR visibility:private <> (myName:kotlin.String) returnType:<root>.EE [primary]
       VALUE_PARAMETER name:myName index:0 type:kotlin.String
         EXPRESSION_BODY
-          CALL 'public final fun lowercase (): kotlin.String declared in kotlin.text.StringsKt' type=kotlin.String origin=null
+          CALL 'public final fun lowercase (): kotlin.String declared in kotlin.text' type=kotlin.String origin=null
             $receiver: CALL 'public open fun toString (): kotlin.String declared in kotlin.Enum.Companion' type=kotlin.String origin=null
               $this: GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Companion modality:FINAL visibility:public [companion] superTypes:[kotlin.Any]' type=kotlin.Enum.Companion
       BLOCK_BODY
diff --git a/compiler/testData/ir/irText/firProblems/timesInBuilder.fir.ir.txt b/compiler/testData/ir/irText/firProblems/timesInBuilder.fir.ir.txt
index c0f01e92728..03a38d7d682 100644
--- a/compiler/testData/ir/irText/firProblems/timesInBuilder.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/timesInBuilder.fir.ir.txt
@@ -112,7 +112,7 @@ FILE fqName:<root> fileName:/timesInBuilder.kt
     PROPERTY name:arguments visibility:public modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:arguments type:kotlin.collections.MutableList<<root>.Expression> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun mutableListOf <T> (): kotlin.collections.MutableList<T of kotlin.collections.CollectionsKt.mutableListOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.MutableList<<root>.Expression> origin=null
+          CALL 'public final fun mutableListOf <T> (): kotlin.collections.MutableList<T of kotlin.collections.mutableListOf> declared in kotlin.collections' type=kotlin.collections.MutableList<<root>.Expression> origin=null
             <T>: <root>.Expression
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-arguments> visibility:public modality:FINAL <> ($this:<root>.ArgumentsBuilder) returnType:kotlin.collections.MutableList<<root>.Expression>
         correspondingProperty: PROPERTY name:arguments visibility:public modality:FINAL [val]
diff --git a/compiler/testData/ir/irText/firProblems/timesInBuilder.ir.txt b/compiler/testData/ir/irText/firProblems/timesInBuilder.ir.txt
index ee6c683df97..b8f9a05e58e 100644
--- a/compiler/testData/ir/irText/firProblems/timesInBuilder.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/timesInBuilder.ir.txt
@@ -119,7 +119,7 @@ FILE fqName:<root> fileName:/timesInBuilder.kt
     PROPERTY name:arguments visibility:public modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:arguments type:kotlin.collections.MutableList<<root>.Expression> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun mutableListOf <T> (): kotlin.collections.MutableList<T of kotlin.collections.CollectionsKt.mutableListOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.MutableList<<root>.Expression> origin=null
+          CALL 'public final fun mutableListOf <T> (): kotlin.collections.MutableList<T of kotlin.collections.mutableListOf> declared in kotlin.collections' type=kotlin.collections.MutableList<<root>.Expression> origin=null
             <T>: <root>.Expression
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-arguments> visibility:public modality:FINAL <> ($this:<root>.ArgumentsBuilder) returnType:kotlin.collections.MutableList<<root>.Expression>
         correspondingProperty: PROPERTY name:arguments visibility:public modality:FINAL [val]
diff --git a/compiler/testData/ir/irText/firProblems/timesInBuilder.kt b/compiler/testData/ir/irText/firProblems/timesInBuilder.kt
index 627862fb3b3..cdf9901421b 100644
--- a/compiler/testData/ir/irText/firProblems/timesInBuilder.kt
+++ b/compiler/testData/ir/irText/firProblems/timesInBuilder.kt
@@ -1,7 +1,6 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
 
-// MUTE_SIGNATURE_COMPARISON_K2: JVM_IR
+// MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57778
 
 private fun test(x: Long) =
diff --git a/compiler/testData/ir/irText/firProblems/timesInBuilder.sig.kt.txt b/compiler/testData/ir/irText/firProblems/timesInBuilder.sig.kt.txt
index 662ed19982a..9a997232a96 100644
--- a/compiler/testData/ir/irText/firProblems/timesInBuilder.sig.kt.txt
+++ b/compiler/testData/ir/irText/firProblems/timesInBuilder.sig.kt.txt
@@ -5,6 +5,9 @@ val spentTime: Column
   // CHECK JVM_IR:
   //   Mangled name: #<get-spentTime>(){}Column
   //   Public signature: /spentTime.<get-spentTime>|3550920958732313011[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-spentTime>(){}
+  //   Public signature: /spentTime.<get-spentTime>|4978928361098048101[0]
   get
 
 // CHECK:
@@ -18,6 +21,9 @@ class ArgumentsBuilder {
     // CHECK JVM_IR:
     //   Mangled name: ArgumentsBuilder#<get-arguments>(){}kotlin.collections.MutableList<Expression>
     //   Public signature: /ArgumentsBuilder.arguments.<get-arguments>|7867094825942376438[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: ArgumentsBuilder#<get-arguments>(){}
+    //   Public signature: /ArgumentsBuilder.arguments.<get-arguments>|-1703265137246288058[0]
     get
 
   // CHECK:
@@ -54,32 +60,48 @@ class Expression {
 
 }
 
-// CHECK:
+// CHECK JVM_IR:
 //   Mangled name: #countIssues(kotlin.Function1<ArgumentsBuilder,kotlin.Unit>){}
 //   Public signature: [ File 'timesInBuilder.kt' <- /countIssues|-3006686104129982000[0] ]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #countIssues(kotlin.Function1<ArgumentsBuilder,kotlin.Unit>){}
 private fun countIssues(restrictionsBuilder: @ExtensionFunctionType Function1<ArgumentsBuilder, Unit>): Unit
 
 // CHECK JVM_IR:
 //   Mangled name: #id(0:0){0§<kotlin.Any?>}0:0
 //   Public signature: /id|-6791396263062521506[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #id(0:0){0§<kotlin.Any?>}
+//   Public signature: /id|9187295668833355463[0]
 fun <I : Any?> id(arg: I): I
 
 // CHECK JVM_IR:
 //   Mangled name: #integer(kotlin.String){}Column
 //   Public signature: /integer|-7515290819735707124[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #integer(kotlin.String){}
+//   Public signature: /integer|262583755062252780[0]
 fun integer(name: String): Column
 
 // CHECK JVM_IR:
 //   Mangled name: #lessEq@Column(0:0){0§<kotlin.Comparable<0:0>>}Expression
 //   Public signature: /lessEq|144930027420774562[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #lessEq@Column(0:0){0§<kotlin.Comparable<0:0>>}
+//   Public signature: /lessEq|-511538213983026615[0]
 infix fun <T : Comparable<T>> Column.lessEq(t: T): Expression
 
 // CHECK JVM_IR:
 //   Mangled name: #select@Column(0:0;0:0){0§<kotlin.Comparable<0:0>>}Expression
 //   Public signature: /select|-7119975056707584867[0]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #select@Column(0:0;0:0){0§<kotlin.Comparable<0:0>>}
+//   Public signature: /select|-2152906716157697979[0]
 fun <T : Comparable<T>> Column.select(t: T, r: T): Expression
 
-// CHECK:
+// CHECK JVM_IR:
 //   Mangled name: #test(kotlin.Long){}
 //   Public signature: [ File 'timesInBuilder.kt' <- /test|-2956403500052581138[0] ]
+// CHECK JS_IR NATIVE:
+//   Mangled name: #test(kotlin.Long){}
 private fun test(x: Long): Unit
diff --git a/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.fir.ir.txt b/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.fir.ir.txt
index b933c69087c..5b5e354488b 100644
--- a/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.fir.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/typeParameterFromJavaClass.kt
   FUN name:foo visibility:public modality:FINAL <> (movedPaths:kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>>) returnType:kotlin.Unit
     VALUE_PARAMETER name:movedPaths index:0 type:kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>>
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: <root>.Couple<<root>.FilePath>
         $receiver: GET_VAR 'movedPaths: kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>> declared in <root>.foo' type=kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>> origin=null
         action: FUN_EXPR type=kotlin.Function1<<root>.Couple<<root>.FilePath>, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.ir.txt b/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.ir.txt
index cc795e6b357..0ef1e9d919f 100644
--- a/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/typeParameterFromJavaClass.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/typeParameterFromJavaClass.kt
   FUN name:foo visibility:public modality:FINAL <> (movedPaths:kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>>) returnType:kotlin.Unit
     VALUE_PARAMETER name:movedPaths index:0 type:kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>>
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: <root>.Couple<<root>.FilePath>
         $receiver: GET_VAR 'movedPaths: kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>> declared in <root>.foo' type=kotlin.collections.MutableList<<root>.Couple<<root>.FilePath>> origin=null
         action: FUN_EXPR type=kotlin.Function1<<root>.Couple<<root>.FilePath>, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.fir.ir.txt b/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.fir.ir.txt
index 22051920f56..923311c210b 100644
--- a/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.fir.ir.txt
@@ -617,7 +617,7 @@ FILE fqName:<root> fileName:/typeVariableAfterBuildMap.kt
     PROPERTY name:ORDERED_VISIBILITIES visibility:private modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:ORDERED_VISIBILITIES type:kotlin.collections.Map<<root>.Visibility, kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun buildMap <K, V> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.buildMap, V of kotlin.collections.MapsKt.buildMap>, kotlin.Unit>): kotlin.collections.Map<K of kotlin.collections.MapsKt.buildMap, V of kotlin.collections.MapsKt.buildMap> declared in kotlin.collections.MapsKt' type=kotlin.collections.Map<<root>.Visibility, kotlin.Int> origin=null
+          CALL 'public final fun buildMap <K, V> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<K of kotlin.collections.buildMap, V of kotlin.collections.buildMap>, kotlin.Unit>): kotlin.collections.Map<K of kotlin.collections.buildMap, V of kotlin.collections.buildMap> declared in kotlin.collections' type=kotlin.collections.Map<<root>.Visibility, kotlin.Int> origin=null
             <K>: <root>.Visibility
             <V>: kotlin.Int
             builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<<root>.Visibility, kotlin.Int>, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.ir.txt b/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.ir.txt
index 62c69662a66..326fdbacd86 100644
--- a/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/typeVariableAfterBuildMap.ir.txt
@@ -617,7 +617,7 @@ FILE fqName:<root> fileName:/typeVariableAfterBuildMap.kt
     PROPERTY name:ORDERED_VISIBILITIES visibility:private modality:FINAL [val]
       FIELD PROPERTY_BACKING_FIELD name:ORDERED_VISIBILITIES type:kotlin.collections.Map<<root>.Visibility, kotlin.Int> visibility:private [final]
         EXPRESSION_BODY
-          CALL 'public final fun buildMap <K, V> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<K of kotlin.collections.MapsKt.buildMap, V of kotlin.collections.MapsKt.buildMap>, kotlin.Unit>): kotlin.collections.Map<K of kotlin.collections.MapsKt.buildMap, V of kotlin.collections.MapsKt.buildMap> declared in kotlin.collections.MapsKt' type=kotlin.collections.Map<<root>.Visibility, kotlin.Int> origin=null
+          CALL 'public final fun buildMap <K, V> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<K of kotlin.collections.buildMap, V of kotlin.collections.buildMap>, kotlin.Unit>): kotlin.collections.Map<K of kotlin.collections.buildMap, V of kotlin.collections.buildMap> declared in kotlin.collections' type=kotlin.collections.Map<<root>.Visibility, kotlin.Int> origin=null
             <K>: <root>.Visibility
             <V>: kotlin.Int
             builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableMap<<root>.Visibility, kotlin.Int>, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/lambdas/extensionLambda.ir.txt b/compiler/testData/ir/irText/lambdas/extensionLambda.ir.txt
index 6084580d14e..c5565addfb2 100644
--- a/compiler/testData/ir/irText/lambdas/extensionLambda.ir.txt
+++ b/compiler/testData/ir/irText/lambdas/extensionLambda.ir.txt
@@ -2,7 +2,7 @@ FILE fqName:<root> fileName:/extensionLambda.kt
   FUN name:test1 visibility:public modality:FINAL <> () returnType:kotlin.Int
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test1 (): kotlin.Int declared in <root>'
-        CALL 'public final fun run <T, R> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.run, R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun run <T, R> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.run, R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Int origin=null
           <T>: kotlin.String
           <R>: kotlin.Int
           $receiver: CONST String type=kotlin.String value="42"
diff --git a/compiler/testData/ir/irText/lambdas/extensionLambda.kt b/compiler/testData/ir/irText/lambdas/extensionLambda.kt
index 86125a9dda3..b00b05194ca 100644
--- a/compiler/testData/ir/irText/lambdas/extensionLambda.kt
+++ b/compiler/testData/ir/irText/lambdas/extensionLambda.kt
@@ -1,5 +1,3 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 fun test1() = "42".run { length }
diff --git a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.fir.ir.txt b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.fir.ir.txt
index 37556e5ca72..e8626e3fd6d 100644
--- a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.fir.ir.txt
+++ b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.fir.ir.txt
@@ -86,7 +86,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
     VALUE_PARAMETER name:invokeImpl index:1 type:<root>.IInvoke
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: <root>.A
           <R>: kotlin.Int
           receiver: GET_OBJECT 'CLASS OBJECT name:A modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.A
@@ -95,7 +95,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
               $receiver: VALUE_PARAMETER name:$this$with type:<root>.A
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.test'
-                  CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+                  CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
                     <T>: <root>.IFoo
                     <R>: kotlin.Int
                     receiver: GET_VAR 'fooImpl: <root>.IFoo declared in <root>.test' type=<root>.IFoo origin=null
@@ -104,7 +104,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
                         $receiver: VALUE_PARAMETER name:$this$with type:<root>.IFoo
                         BLOCK_BODY
                           RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.test.<anonymous>'
-                            CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+                            CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
                               <T>: <root>.IInvoke
                               <R>: kotlin.Int
                               receiver: GET_VAR 'invokeImpl: <root>.IInvoke declared in <root>.test' type=<root>.IInvoke origin=null
diff --git a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.ir.txt b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.ir.txt
index ef002bb400e..1a6f4763897 100644
--- a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.ir.txt
+++ b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.ir.txt
@@ -86,7 +86,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
     VALUE_PARAMETER name:invokeImpl index:1 type:<root>.IInvoke
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+        CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
           <T>: <root>.A
           <R>: kotlin.Int
           receiver: GET_OBJECT 'CLASS OBJECT name:A modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.A
@@ -95,7 +95,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
               $receiver: VALUE_PARAMETER name:$this$with type:<root>.A
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.test'
-                  CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+                  CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
                     <T>: <root>.IFoo
                     <R>: kotlin.Int
                     receiver: GET_VAR 'fooImpl: <root>.IFoo declared in <root>.test' type=<root>.IFoo origin=null
@@ -104,7 +104,7 @@ FILE fqName:<root> fileName:/multipleImplicitReceivers.kt
                         $receiver: VALUE_PARAMETER name:$this$with type:<root>.IFoo
                         BLOCK_BODY
                           RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.test.<anonymous>'
-                            CALL 'public final fun with <T, R> (receiver: T of kotlin.StandardKt.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.with, R of kotlin.StandardKt.with>): R of kotlin.StandardKt.with declared in kotlin.StandardKt' type=kotlin.Int origin=null
+                            CALL 'public final fun with <T, R> (receiver: T of kotlin.with, block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.with, R of kotlin.with>): R of kotlin.with declared in kotlin' type=kotlin.Int origin=null
                               <T>: <root>.IInvoke
                               <R>: kotlin.Int
                               receiver: GET_VAR 'invokeImpl: <root>.IInvoke declared in <root>.test' type=<root>.IInvoke origin=null
diff --git a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.kt b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.kt
index 907588e0011..da208ed899b 100644
--- a/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.kt
+++ b/compiler/testData/ir/irText/lambdas/multipleImplicitReceivers.kt
@@ -1,6 +1,3 @@
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
-
 object A
 object B
 
diff --git a/compiler/testData/ir/irText/lambdas/nonLocalReturn.ir.txt b/compiler/testData/ir/irText/lambdas/nonLocalReturn.ir.txt
index 3cbe2016eb2..d9d56230af8 100644
--- a/compiler/testData/ir/irText/lambdas/nonLocalReturn.ir.txt
+++ b/compiler/testData/ir/irText/lambdas/nonLocalReturn.ir.txt
@@ -1,7 +1,7 @@
 FILE fqName:<root> fileName:/nonLocalReturn.kt
   FUN name:test0 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Nothing origin=null
         <R>: kotlin.Nothing
         block: FUN_EXPR type=kotlin.Function0<kotlin.Nothing> origin=LAMBDA
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Nothing
@@ -10,7 +10,7 @@ FILE fqName:<root> fileName:/nonLocalReturn.kt
                 GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
   FUN name:test1 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Unit origin=null
         <R>: kotlin.Unit
         block: FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
@@ -19,7 +19,7 @@ FILE fqName:<root> fileName:/nonLocalReturn.kt
                 GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
   FUN name:test2 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Unit origin=null
         <R>: kotlin.Unit
         block: FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
@@ -28,12 +28,12 @@ FILE fqName:<root> fileName:/nonLocalReturn.kt
                 GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
   FUN name:test3 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Unit origin=null
+      CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Unit origin=null
         <R>: kotlin.Unit
         block: FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
             BLOCK_BODY
-              CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+              CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.run>): R of kotlin.run declared in kotlin' type=kotlin.Nothing origin=null
                 <R>: kotlin.Nothing
                 block: FUN_EXPR type=kotlin.Function0<kotlin.Nothing> origin=LAMBDA
                   FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Nothing
@@ -43,7 +43,7 @@ FILE fqName:<root> fileName:/nonLocalReturn.kt
   FUN name:testLrmFoo1 visibility:public modality:FINAL <> (ints:kotlin.collections.List<kotlin.Int>) returnType:kotlin.Unit
     VALUE_PARAMETER name:ints index:0 type:kotlin.collections.List<kotlin.Int>
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: GET_VAR 'ints: kotlin.collections.List<kotlin.Int> declared in <root>.testLrmFoo1' type=kotlin.collections.List<kotlin.Int> origin=null
         action: FUN_EXPR type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=LAMBDA
@@ -62,7 +62,7 @@ FILE fqName:<root> fileName:/nonLocalReturn.kt
   FUN name:testLrmFoo2 visibility:public modality:FINAL <> (ints:kotlin.collections.List<kotlin.Int>) returnType:kotlin.Unit
     VALUE_PARAMETER name:ints index:0 type:kotlin.collections.List<kotlin.Int>
     BLOCK_BODY
-      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.CollectionsKt.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections.CollectionsKt' type=kotlin.Unit origin=null
+      CALL 'public final fun forEach <T> (action: kotlin.Function1<T of kotlin.collections.forEach, kotlin.Unit>): kotlin.Unit declared in kotlin.collections' type=kotlin.Unit origin=null
         <T>: kotlin.Int
         $receiver: GET_VAR 'ints: kotlin.collections.List<kotlin.Int> declared in <root>.testLrmFoo2' type=kotlin.collections.List<kotlin.Int> origin=null
         action: FUN_EXPR type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=LAMBDA
diff --git a/compiler/testData/ir/irText/regressions/integerCoercionToT.fir.ir.txt b/compiler/testData/ir/irText/regressions/integerCoercionToT.fir.ir.txt
index 566f210e7a2..16f7afef002 100644
--- a/compiler/testData/ir/irText/regressions/integerCoercionToT.fir.ir.txt
+++ b/compiler/testData/ir/irText/regressions/integerCoercionToT.fir.ir.txt
@@ -20,7 +20,7 @@ FILE fqName:<root> fileName:/integerCoercionToT.kt
     $receiver: VALUE_PARAMETER name:<this> type:<root>.CPointed
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun reinterpret <T> (): T of <root>.reinterpret declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   CLASS CLASS name:CInt32VarX modality:FINAL visibility:public superTypes:[<root>.CPointed]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.CInt32VarX<T of <root>.CInt32VarX>
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
@@ -48,7 +48,7 @@ FILE fqName:<root> fileName:/integerCoercionToT.kt
       $receiver: VALUE_PARAMETER name:<this> type:<root>.CInt32VarX<T_INT of <root>.<get-value>>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-value> <T_INT> (): T_INT of <root>.<get-value> declared in <root>'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:<set-value> visibility:public modality:FINAL <T_INT> ($receiver:<root>.CInt32VarX<T_INT of <root>.<set-value>>, value:T_INT of <root>.<set-value>) returnType:kotlin.Unit
       correspondingProperty: PROPERTY name:value visibility:public modality:FINAL [var]
       TYPE_PARAMETER name:T_INT index:0 variance: superTypes:[kotlin.Int] reified:false
diff --git a/compiler/testData/ir/irText/regressions/integerCoercionToT.ir.txt b/compiler/testData/ir/irText/regressions/integerCoercionToT.ir.txt
index 00296633859..72abb14c162 100644
--- a/compiler/testData/ir/irText/regressions/integerCoercionToT.ir.txt
+++ b/compiler/testData/ir/irText/regressions/integerCoercionToT.ir.txt
@@ -19,7 +19,7 @@ FILE fqName:<root> fileName:/integerCoercionToT.kt
     $receiver: VALUE_PARAMETER name:<this> type:<root>.CPointed
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun reinterpret <T> (): T of <root>.reinterpret declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   CLASS CLASS name:CInt32VarX modality:FINAL visibility:public superTypes:[<root>.CPointed]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.CInt32VarX<T of <root>.CInt32VarX>
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
@@ -48,7 +48,7 @@ FILE fqName:<root> fileName:/integerCoercionToT.kt
       $receiver: VALUE_PARAMETER name:<this> type:<root>.CInt32VarX<T_INT of <root>.<get-value>>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun <get-value> <T_INT> (): T_INT of <root>.<get-value> declared in <root>'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:<set-value> visibility:public modality:FINAL <T_INT> ($receiver:<root>.CInt32VarX<T_INT of <root>.<set-value>>, value:T_INT of <root>.<set-value>) returnType:kotlin.Unit
       correspondingProperty: PROPERTY name:value visibility:public modality:FINAL [var]
       TYPE_PARAMETER name:T_INT index:0 variance: superTypes:[kotlin.Int] reified:false
diff --git a/compiler/testData/ir/irText/regressions/integerCoercionToT.kt b/compiler/testData/ir/irText/regressions/integerCoercionToT.kt
index 403eed60555..5603b4dfb3a 100644
--- a/compiler/testData/ir/irText/regressions/integerCoercionToT.kt
+++ b/compiler/testData/ir/irText/regressions/integerCoercionToT.kt
@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 interface CPointed
 
 inline fun <reified T : CPointed> CPointed.reinterpret(): T = TODO()
diff --git a/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.ir.txt b/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.ir.txt
index 2d7df81e7f3..2ddb7d44006 100644
--- a/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.ir.txt
+++ b/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/newInferenceFixationOrder1.kt
     TYPE_PARAMETER name:Y index:1 variance: superTypes:[kotlin.Any?] reified:false
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun foo <X, Y> (): kotlin.Function1<X of <root>.foo, Y of <root>.foo> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   CLASS INTERFACE name:Inv2 modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Inv2<A of <root>.Inv2, B of <root>.Inv2>
     TYPE_PARAMETER name:A index:0 variance: superTypes:[kotlin.Any?] reified:false
@@ -30,7 +30,7 @@ FILE fqName:<root> fileName:/newInferenceFixationOrder1.kt
     VALUE_PARAMETER name:f index:2 type:kotlin.Function1<T of <root>.check, R of <root>.check>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun check <T, R> (x: T of <root>.check, y: R of <root>.check, f: kotlin.Function1<T of <root>.check, R of <root>.check>): <root>.Inv2<T of <root>.check, R of <root>.check> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:test visibility:public modality:FINAL <> () returnType:<root>.Inv2<kotlin.String, kotlin.Int>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test (): <root>.Inv2<kotlin.String, kotlin.Int> declared in <root>'
diff --git a/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.kt b/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.kt
index c864c3f3e19..6f189fcccc8 100644
--- a/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.kt
+++ b/compiler/testData/ir/irText/regressions/newInferenceFixationOrder1.kt
@@ -1,6 +1,5 @@
 // FIR_IDENTICAL
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
+
 fun <X, Y> foo(): (X) -> Y = TODO()
 
 interface Inv2<A, B>
diff --git a/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.fir.ir.txt b/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.fir.ir.txt
index c5927898d5c..d37ab14def5 100644
--- a/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.fir.ir.txt
+++ b/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.fir.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/typeParametersInImplicitCast.kt
     VALUE_PARAMETER name:lss index:0 type:kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun problematic <T> (lss: kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>>): kotlin.collections.List<T of <root>.problematic> declared in <root>'
-        CALL 'public final fun flatMap <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.flatMap, kotlin.collections.Iterable<R of kotlin.collections.CollectionsKt.flatMap>>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.flatMap> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<@[FlexibleNullability] T of <root>.problematic?> origin=null
+        CALL 'public final fun flatMap <T, R> (transform: kotlin.Function1<T of kotlin.collections.flatMap, kotlin.collections.Iterable<R of kotlin.collections.flatMap>>): kotlin.collections.List<R of kotlin.collections.flatMap> declared in kotlin.collections' type=kotlin.collections.List<@[FlexibleNullability] T of <root>.problematic?> origin=null
           <T>: kotlin.collections.List<T of <root>.problematic>
           <R>: @[FlexibleNullability] T of <root>.problematic?
           $receiver: GET_VAR 'lss: kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>> declared in <root>.problematic' type=kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>> origin=null
diff --git a/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.ir.txt b/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.ir.txt
index e1b00ae132e..13c2cca77e3 100644
--- a/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.ir.txt
+++ b/compiler/testData/ir/irText/regressions/typeParametersInImplicitCast.ir.txt
@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/typeParametersInImplicitCast.kt
     VALUE_PARAMETER name:lss index:0 type:kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun problematic <T> (lss: kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>>): kotlin.collections.List<T of <root>.problematic> declared in <root>'
-        CALL 'public final fun flatMap <T, R> (transform: kotlin.Function1<T of kotlin.collections.CollectionsKt.flatMap, kotlin.collections.Iterable<R of kotlin.collections.CollectionsKt.flatMap>>): kotlin.collections.List<R of kotlin.collections.CollectionsKt.flatMap> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<@[FlexibleNullability] T of <root>.problematic?> origin=null
+        CALL 'public final fun flatMap <T, R> (transform: kotlin.Function1<T of kotlin.collections.flatMap, kotlin.collections.Iterable<R of kotlin.collections.flatMap>>): kotlin.collections.List<R of kotlin.collections.flatMap> declared in kotlin.collections' type=kotlin.collections.List<@[FlexibleNullability] T of <root>.problematic?> origin=null
           <T>: kotlin.collections.List<T of <root>.problematic>
           <R>: @[FlexibleNullability] T of <root>.problematic?
           $receiver: GET_VAR 'lss: kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>> declared in <root>.problematic' type=kotlin.collections.List<kotlin.collections.List<T of <root>.problematic>> origin=null
diff --git a/compiler/testData/ir/irText/stubs/builtinMap.fir.ir.txt b/compiler/testData/ir/irText/stubs/builtinMap.fir.ir.txt
index 231874cceca..d657efa75ce 100644
--- a/compiler/testData/ir/irText/stubs/builtinMap.fir.ir.txt
+++ b/compiler/testData/ir/irText/stubs/builtinMap.fir.ir.txt
@@ -10,13 +10,13 @@ FILE fqName:<root> fileName:/builtinMap.kt
           BRANCH
             if: CALL 'public abstract fun isEmpty (): kotlin.Boolean declared in kotlin.collections.Map' type=kotlin.Boolean origin=null
               $this: GET_VAR '<this>: kotlin.collections.Map<out K1 of <root>.plus, V1 of <root>.plus> declared in <root>.plus' type=kotlin.collections.Map<out K1 of <root>.plus, V1 of <root>.plus> origin=null
-            then: CALL 'public final fun mapOf <K, V> (pair: kotlin.Pair<K of kotlin.collections.MapsKt.mapOf, V of kotlin.collections.MapsKt.mapOf>): kotlin.collections.Map<K of kotlin.collections.MapsKt.mapOf, V of kotlin.collections.MapsKt.mapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.Map<K1 of <root>.plus, V1 of <root>.plus> origin=null
+            then: CALL 'public final fun mapOf <K, V> (pair: kotlin.Pair<K of kotlin.collections.mapOf, V of kotlin.collections.mapOf>): kotlin.collections.Map<K of kotlin.collections.mapOf, V of kotlin.collections.mapOf> declared in kotlin.collections' type=kotlin.collections.Map<K1 of <root>.plus, V1 of <root>.plus> origin=null
               <K>: K1 of <root>.plus
               <V>: V1 of <root>.plus
               pair: GET_VAR 'pair: kotlin.Pair<K1 of <root>.plus, V1 of <root>.plus> declared in <root>.plus' type=kotlin.Pair<K1 of <root>.plus, V1 of <root>.plus> origin=null
           BRANCH
             if: CONST Boolean type=kotlin.Boolean value=true
-            then: CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.apply, kotlin.Unit>): T of kotlin.StandardKt.apply declared in kotlin.StandardKt' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> origin=null
+            then: CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.apply, kotlin.Unit>): T of kotlin.apply declared in kotlin' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> origin=null
               <T>: java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?>
               $receiver: CONSTRUCTOR_CALL 'public constructor <init> (p0: @[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableMap<out @[FlexibleNullability] K of java.util.LinkedHashMap?, out @[FlexibleNullability] V of java.util.LinkedHashMap?>?) declared in java.util.LinkedHashMap' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> origin=null
                 <class: K>: @[FlexibleNullability] K1 of <root>.plus?
diff --git a/compiler/testData/ir/irText/stubs/builtinMap.ir.txt b/compiler/testData/ir/irText/stubs/builtinMap.ir.txt
index c4948c4f30b..0f4bb09b5d5 100644
--- a/compiler/testData/ir/irText/stubs/builtinMap.ir.txt
+++ b/compiler/testData/ir/irText/stubs/builtinMap.ir.txt
@@ -10,13 +10,13 @@ FILE fqName:<root> fileName:/builtinMap.kt
           BRANCH
             if: CALL 'public abstract fun isEmpty (): kotlin.Boolean declared in kotlin.collections.Map' type=kotlin.Boolean origin=null
               $this: GET_VAR '<this>: kotlin.collections.Map<out K1 of <root>.plus, V1 of <root>.plus> declared in <root>.plus' type=kotlin.collections.Map<out K1 of <root>.plus, V1 of <root>.plus> origin=null
-            then: CALL 'public final fun mapOf <K, V> (pair: kotlin.Pair<K of kotlin.collections.MapsKt.mapOf, V of kotlin.collections.MapsKt.mapOf>): kotlin.collections.Map<K of kotlin.collections.MapsKt.mapOf, V of kotlin.collections.MapsKt.mapOf> declared in kotlin.collections.MapsKt' type=kotlin.collections.Map<K1 of <root>.plus, V1 of <root>.plus> origin=null
+            then: CALL 'public final fun mapOf <K, V> (pair: kotlin.Pair<K of kotlin.collections.mapOf, V of kotlin.collections.mapOf>): kotlin.collections.Map<K of kotlin.collections.mapOf, V of kotlin.collections.mapOf> declared in kotlin.collections' type=kotlin.collections.Map<K1 of <root>.plus, V1 of <root>.plus> origin=null
               <K>: K1 of <root>.plus
               <V>: V1 of <root>.plus
               pair: GET_VAR 'pair: kotlin.Pair<K1 of <root>.plus, V1 of <root>.plus> declared in <root>.plus' type=kotlin.Pair<K1 of <root>.plus, V1 of <root>.plus> origin=null
           BRANCH
             if: CONST Boolean type=kotlin.Boolean value=true
-            then: CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.StandardKt.apply, kotlin.Unit>): T of kotlin.StandardKt.apply declared in kotlin.StandardKt' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?>{ kotlin.collections.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> } origin=null
+            then: CALL 'public final fun apply <T> (block: @[ExtensionFunctionType] kotlin.Function1<T of kotlin.apply, kotlin.Unit>): T of kotlin.apply declared in kotlin' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?>{ kotlin.collections.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> } origin=null
               <T>: java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?>{ kotlin.collections.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> }
               $receiver: CONSTRUCTOR_CALL 'public constructor <init> (p0: @[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableMap<out @[FlexibleNullability] K of java.util.LinkedHashMap?, out @[FlexibleNullability] V of java.util.LinkedHashMap?>?) declared in java.util.LinkedHashMap' type=java.util.LinkedHashMap<@[FlexibleNullability] K1 of <root>.plus?, @[FlexibleNullability] V1 of <root>.plus?> origin=null
                 <class: K>: @[FlexibleNullability] K1 of <root>.plus?
diff --git a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.fir.ir.txt b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.fir.ir.txt
index f5679f85b00..2cd67fb92f8 100644
--- a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.fir.ir.txt
@@ -56,7 +56,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.unsafeFlow>, kotlin.Unit> [crossinline]
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun unsafeFlow <T> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.unsafeFlow>, kotlin.Unit>): <root>.Flow<T of <root>.unsafeFlow> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:onCompletion visibility:public modality:FINAL <T> ($receiver:<root>.Flow<T of <root>.onCompletion>, action:kotlin.coroutines.SuspendFunction1<@[ParameterName(name = 'cause')] kotlin.Throwable?, kotlin.Unit>) returnType:<root>.Flow<T of <root>.onCompletion>
     annotations:
       Deprecated(message = 'binary compatibility with a version w/o FlowCollector receiver', replaceWith = <null>, level = GET_ENUM 'ENUM_ENTRY IR_EXTERNAL_DECLARATION_STUB name:HIDDEN' type=kotlin.DeprecationLevel)
@@ -194,7 +194,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.flow>, kotlin.Unit>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun flow <T> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.flow>, kotlin.Unit>): <root>.Flow<T of <root>.flow> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:flowScope visibility:public modality:FINAL <R> (block:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>) returnType:R of <root>.flowScope [suspend]
     annotations:
       OptIn(markerClass = [CLASS_REFERENCE 'CLASS IR_EXTERNAL_DECLARATION_STUB ANNOTATION_CLASS name:ExperimentalTypeInference modality:FINAL visibility:public superTypes:[kotlin.Annotation]' type=kotlin.reflect.KClass<kotlin.experimental.ExperimentalTypeInference>])
@@ -202,7 +202,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun flowScope <R> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>): R of <root>.flowScope declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:collect visibility:public modality:FINAL <T> ($receiver:<root>.Flow<T of <root>.collect>, action:kotlin.coroutines.SuspendFunction1<@[ParameterName(name = 'value')] T of <root>.collect, kotlin.Unit>) returnType:kotlin.Unit [inline,suspend]
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
     $receiver: VALUE_PARAMETER name:<this> type:<root>.Flow<T of <root>.collect>
@@ -309,7 +309,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.ProducerScope<E of <root>.produce>, kotlin.Unit>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun produce <E> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.ProducerScope<E of <root>.produce>, kotlin.Unit>): <root>.ReceiveChannel<E of <root>.produce> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   CLASS INTERFACE name:ProducerScope modality:ABSTRACT visibility:public superTypes:[<root>.CoroutineScope; <root>.SendChannel<E of <root>.ProducerScope>]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ProducerScope<E of <root>.ProducerScope>
     TYPE_PARAMETER name:E index:0 variance:in superTypes:[kotlin.Any?] reified:false
diff --git a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.ir.txt b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.ir.txt
index 180805fcf9e..f648ef58e3b 100644
--- a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.ir.txt
+++ b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.ir.txt
@@ -56,7 +56,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.unsafeFlow>, kotlin.Unit> [crossinline]
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun unsafeFlow <T> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.unsafeFlow>, kotlin.Unit>): <root>.Flow<T of <root>.unsafeFlow> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:onCompletion visibility:public modality:FINAL <T> ($receiver:<root>.Flow<T of <root>.onCompletion>, action:kotlin.coroutines.SuspendFunction1<@[ParameterName(name = 'cause')] kotlin.Throwable?, kotlin.Unit>) returnType:<root>.Flow<T of <root>.onCompletion>
     annotations:
       Deprecated(message = 'binary compatibility with a version w/o FlowCollector receiver', replaceWith = <null>, level = GET_ENUM 'ENUM_ENTRY IR_EXTERNAL_DECLARATION_STUB name:HIDDEN' type=kotlin.DeprecationLevel)
@@ -194,7 +194,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.flow>, kotlin.Unit>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun flow <T> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.FlowCollector<T of <root>.flow>, kotlin.Unit>): <root>.Flow<T of <root>.flow> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:flowScope visibility:public modality:FINAL <R> (block:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>) returnType:R of <root>.flowScope [suspend]
     annotations:
       OptIn(markerClass = [CLASS_REFERENCE 'CLASS IR_EXTERNAL_DECLARATION_STUB ANNOTATION_CLASS name:ExperimentalTypeInference modality:OPEN visibility:public superTypes:[kotlin.Annotation]' type=kotlin.reflect.KClass<kotlin.experimental.ExperimentalTypeInference>])
@@ -202,7 +202,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun flowScope <R> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.CoroutineScope, R of <root>.flowScope>): R of <root>.flowScope declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:collect visibility:public modality:FINAL <T> ($receiver:<root>.Flow<T of <root>.collect>, action:kotlin.coroutines.SuspendFunction1<@[ParameterName(name = 'value')] T of <root>.collect, kotlin.Unit>) returnType:kotlin.Unit [inline,suspend]
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
     $receiver: VALUE_PARAMETER name:<this> type:<root>.Flow<T of <root>.collect>
@@ -309,7 +309,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
     VALUE_PARAMETER name:block index:0 type:@[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.ProducerScope<E of <root>.produce>, kotlin.Unit>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun produce <E> (block: @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<<root>.ProducerScope<E of <root>.produce>, kotlin.Unit>): <root>.ReceiveChannel<E of <root>.produce> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   CLASS INTERFACE name:ProducerScope modality:ABSTRACT visibility:public superTypes:[<root>.CoroutineScope; <root>.SendChannel<E of <root>.ProducerScope>]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ProducerScope<E of <root>.ProducerScope>
     TYPE_PARAMETER name:E index:0 variance:in superTypes:[kotlin.Any?] reified:false
diff --git a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.kt b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.kt
index efd812bda57..6d1995d0d9f 100644
--- a/compiler/testData/ir/irText/types/castsInsideCoroutineInference.kt
+++ b/compiler/testData/ir/irText/types/castsInsideCoroutineInference.kt
@@ -1,6 +1,4 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
 // MUTE_SIGNATURE_COMPARISON_K2: ANY
 // ^ KT-57429, KT-57778
diff --git a/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.ir.txt b/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.ir.txt
index ab682e3278f..56779db656e 100644
--- a/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.ir.txt
+++ b/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.ir.txt
@@ -44,11 +44,11 @@ FILE fqName:<root> fileName:/dontLeaveStubTypesInSetter.kt
     VALUE_PARAMETER name:x index:0 type:kotlin.collections.MutableList<K of <root>.foo>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun foo <K> (x: kotlin.collections.MutableList<K of <root>.foo>): <root>.Foo<K of <root>.foo> declared in <root>'
-        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+        CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
   FUN name:main visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       VAR name:x type:kotlin.collections.List<kotlin.String> [val]
-        CALL 'public final fun buildList <E> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableList<E of kotlin.collections.CollectionsKt.buildList>, kotlin.Unit>): kotlin.collections.List<E of kotlin.collections.CollectionsKt.buildList> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+        CALL 'public final fun buildList <E> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableList<E of kotlin.collections.buildList>, kotlin.Unit>): kotlin.collections.List<E of kotlin.collections.buildList> declared in kotlin.collections' type=kotlin.collections.List<kotlin.String> origin=null
           <E>: kotlin.String
           builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableList<kotlin.String>, kotlin.Unit> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:kotlin.collections.MutableList<kotlin.String>) returnType:kotlin.Unit
diff --git a/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt b/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt
index 7543e74f341..a295b418888 100644
--- a/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt
+++ b/compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt
@@ -1,9 +1,7 @@
 // FIR_IDENTICAL
 // WITH_STDLIB
-// IGNORE_BACKEND: JS_IR
-// IGNORE_BACKEND: JS_IR_ES6
 
-// MUTE_SIGNATURE_COMPARISON_K2: ANY
+// MUTE_SIGNATURE_COMPARISON_K2: JVM_IR
 // ^ KT-57429, KT-57755
 
 class Foo<T>(var x: T)
diff --git a/compiler/testData/ir/irText/types/kt49526.fir.ir.txt b/compiler/testData/ir/irText/types/kt49526.fir.ir.txt
index 9043d0db27c..5a4874a54ce 100644
--- a/compiler/testData/ir/irText/types/kt49526.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/kt49526.fir.ir.txt
@@ -3,9 +3,9 @@ FILE fqName:<root> fileName:/kt49526.kt
     BLOCK_BODY
       VAR name:ref type:kotlin.reflect.KFunction1<kotlin.Nothing, kotlin.Boolean> [val]
         FUNCTION_REFERENCE 'public abstract fun contains (element: E of kotlin.collections.List): kotlin.Boolean declared in kotlin.collections.List' type=kotlin.reflect.KFunction1<kotlin.Any, kotlin.Boolean> origin=null reflectionTarget=<same>
-          $this: CALL 'public final fun plus <T> (element: T of kotlin.collections.CollectionsKt.plus): kotlin.collections.List<T of kotlin.collections.CollectionsKt.plus> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Any> origin=PLUS
+          $this: CALL 'public final fun plus <T> (element: T of kotlin.collections.plus): kotlin.collections.List<T of kotlin.collections.plus> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Any> origin=PLUS
             <T>: kotlin.Comparable<kotlin.Nothing>
-            $receiver: CALL 'public final fun listOf <T> (element: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Char> origin=null
+            $receiver: CALL 'public final fun listOf <T> (element: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Char> origin=null
               <T>: kotlin.Char
               element: CONST Char type=kotlin.Char value='a'
             element: CONST String type=kotlin.String value="-"
diff --git a/compiler/testData/ir/irText/types/kt49526.ir.txt b/compiler/testData/ir/irText/types/kt49526.ir.txt
index 4aa80e07880..15a10d9f011 100644
--- a/compiler/testData/ir/irText/types/kt49526.ir.txt
+++ b/compiler/testData/ir/irText/types/kt49526.ir.txt
@@ -3,9 +3,9 @@ FILE fqName:<root> fileName:/kt49526.kt
     BLOCK_BODY
       VAR name:ref type:kotlin.reflect.KFunction1<kotlin.Nothing, kotlin.Boolean> [val]
         FUNCTION_REFERENCE 'public abstract fun contains (element: E of kotlin.collections.List): kotlin.Boolean declared in kotlin.collections.List' type=kotlin.reflect.KFunction1<kotlin.Any, kotlin.Boolean> origin=null reflectionTarget=<same>
-          $this: CALL 'public final fun plus <T> (element: T of kotlin.collections.CollectionsKt.plus): kotlin.collections.List<T of kotlin.collections.CollectionsKt.plus> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Any> origin=PLUS
+          $this: CALL 'public final fun plus <T> (element: T of kotlin.collections.plus): kotlin.collections.List<T of kotlin.collections.plus> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Any> origin=PLUS
             <T>: kotlin.Any
-            $receiver: CALL 'public final fun listOf <T> (element: T of kotlin.collections.CollectionsKt.listOf): kotlin.collections.List<T of kotlin.collections.CollectionsKt.listOf> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.Char> origin=null
+            $receiver: CALL 'public final fun listOf <T> (element: T of kotlin.collections.listOf): kotlin.collections.List<T of kotlin.collections.listOf> declared in kotlin.collections' type=kotlin.collections.List<kotlin.Char> origin=null
               <T>: kotlin.Char
               element: CONST Char type=kotlin.Char value='a'
             element: CONST String type=kotlin.String value="-"
diff --git a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.fir.ir.txt b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.fir.ir.txt
index 8f2c155acf6..33f71e8e46f 100644
--- a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.fir.ir.txt
@@ -178,9 +178,9 @@ FILE fqName:<root> fileName:/enhancedNullabilityInDestructuringAssignment.kt
   FUN name:test4 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P> [val]
-        CALL 'public final fun first <T> (): T of kotlin.collections.CollectionsKt.first declared in kotlin.collections.CollectionsKt' type=kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P> origin=null
+        CALL 'public final fun first <T> (): T of kotlin.collections.first declared in kotlin.collections' type=kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P> origin=null
           <T>: kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P>
-          $receiver: CALL 'public final fun withIndex <T> (): kotlin.collections.Iterable<kotlin.collections.IndexedValue<T of kotlin.collections.CollectionsKt.withIndex>> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Iterable<kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P>> origin=null
+          $receiver: CALL 'public final fun withIndex <T> (): kotlin.collections.Iterable<kotlin.collections.IndexedValue<T of kotlin.collections.withIndex>> declared in kotlin.collections' type=kotlin.collections.Iterable<kotlin.collections.IndexedValue<@[EnhancedNullability] <root>.P>> origin=null
             <T>: @[EnhancedNullability] <root>.P
             $receiver: TYPE_OP type=@[FlexibleMutability] kotlin.collections.MutableList<@[EnhancedNullability] <root>.P> origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleMutability] kotlin.collections.MutableList<@[EnhancedNullability] <root>.P>
               CALL 'public open fun listOfNotNull (): @[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableList<@[EnhancedNullability] <root>.P>? declared in <root>.J' type=@[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableList<@[EnhancedNullability] <root>.P>? origin=null
diff --git a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.ir.txt b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.ir.txt
index 24d0b46fc91..6dc7bea059e 100644
--- a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.ir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInDestructuringAssignment.ir.txt
@@ -188,9 +188,9 @@ FILE fqName:<root> fileName:/enhancedNullabilityInDestructuringAssignment.kt
     BLOCK_BODY
       COMPOSITE type=kotlin.Unit origin=DESTRUCTURING_DECLARATION
         VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P> [val]
-          CALL 'public final fun first <T> (): T of kotlin.collections.CollectionsKt.first declared in kotlin.collections.CollectionsKt' type=kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P> origin=null
+          CALL 'public final fun first <T> (): T of kotlin.collections.first declared in kotlin.collections' type=kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P> origin=null
             <T>: kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>
-            $receiver: CALL 'public final fun withIndex <T> (): kotlin.collections.Iterable<kotlin.collections.IndexedValue<T of kotlin.collections.CollectionsKt.withIndex>> declared in kotlin.collections.CollectionsKt' type=kotlin.collections.Iterable<kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>> origin=null
+            $receiver: CALL 'public final fun withIndex <T> (): kotlin.collections.Iterable<kotlin.collections.IndexedValue<T of kotlin.collections.withIndex>> declared in kotlin.collections' type=kotlin.collections.Iterable<kotlin.collections.IndexedValue<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>> origin=null
               <T>: @[NotNull(value = <null>)] @[EnhancedNullability] <root>.P
               $receiver: TYPE_OP type=kotlin.collections.List<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P> origin=IMPLICIT_NOTNULL typeOperand=kotlin.collections.List<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>
                 CALL 'public open fun listOfNotNull (): @[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableList<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>? declared in <root>.J' type=@[FlexibleNullability] @[FlexibleMutability] kotlin.collections.MutableList<@[NotNull(value = <null>)] @[EnhancedNullability] <root>.P>? origin=null
diff --git a/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.fir.ir.txt b/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.fir.ir.txt
index f7323e239e7..c54f0c987f2 100644
--- a/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.fir.ir.txt
@@ -18,7 +18,7 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.MySet
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public open fun <get-size> (): kotlin.Int declared in <root>.MySet'
-            CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+            CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:contains visibility:public modality:OPEN <> ($this:<root>.MySet, element:kotlin.String) returnType:kotlin.Boolean [operator]
       overridden:
         public abstract fun contains (element: E of kotlin.collections.Set): kotlin.Boolean declared in kotlin.collections.Set
@@ -26,7 +26,7 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
       VALUE_PARAMETER name:element index:0 type:kotlin.String
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun contains (element: kotlin.String): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:containsAll visibility:public modality:OPEN <> ($this:<root>.MySet, elements:kotlin.collections.Collection<kotlin.String>) returnType:kotlin.Boolean
       overridden:
         public abstract fun containsAll (elements: kotlin.collections.Collection<E of kotlin.collections.Set>): kotlin.Boolean declared in kotlin.collections.Set
@@ -34,21 +34,21 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
       VALUE_PARAMETER name:elements index:0 type:kotlin.collections.Collection<kotlin.String>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun containsAll (elements: kotlin.collections.Collection<kotlin.String>): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:isEmpty visibility:public modality:OPEN <> ($this:<root>.MySet) returnType:kotlin.Boolean
       overridden:
         public abstract fun isEmpty (): kotlin.Boolean declared in kotlin.collections.Set
       $this: VALUE_PARAMETER name:<this> type:<root>.MySet
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun isEmpty (): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:iterator visibility:public modality:OPEN <> ($this:<root>.MySet) returnType:kotlin.collections.Iterator<kotlin.String> [operator]
       overridden:
         public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.Set> declared in kotlin.collections.Set
       $this: VALUE_PARAMETER name:<this> type:<root>.MySet
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun iterator (): kotlin.collections.Iterator<kotlin.String> declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.collections.Set
diff --git a/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.ir.txt b/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.ir.txt
index f7323e239e7..c54f0c987f2 100644
--- a/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.ir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/implicitNotNullOnPlatformType.ir.txt
@@ -18,7 +18,7 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.MySet
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public open fun <get-size> (): kotlin.Int declared in <root>.MySet'
-            CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+            CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:contains visibility:public modality:OPEN <> ($this:<root>.MySet, element:kotlin.String) returnType:kotlin.Boolean [operator]
       overridden:
         public abstract fun contains (element: E of kotlin.collections.Set): kotlin.Boolean declared in kotlin.collections.Set
@@ -26,7 +26,7 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
       VALUE_PARAMETER name:element index:0 type:kotlin.String
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun contains (element: kotlin.String): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:containsAll visibility:public modality:OPEN <> ($this:<root>.MySet, elements:kotlin.collections.Collection<kotlin.String>) returnType:kotlin.Boolean
       overridden:
         public abstract fun containsAll (elements: kotlin.collections.Collection<E of kotlin.collections.Set>): kotlin.Boolean declared in kotlin.collections.Set
@@ -34,21 +34,21 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
       VALUE_PARAMETER name:elements index:0 type:kotlin.collections.Collection<kotlin.String>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun containsAll (elements: kotlin.collections.Collection<kotlin.String>): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:isEmpty visibility:public modality:OPEN <> ($this:<root>.MySet) returnType:kotlin.Boolean
       overridden:
         public abstract fun isEmpty (): kotlin.Boolean declared in kotlin.collections.Set
       $this: VALUE_PARAMETER name:<this> type:<root>.MySet
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun isEmpty (): kotlin.Boolean declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN name:iterator visibility:public modality:OPEN <> ($this:<root>.MySet) returnType:kotlin.collections.Iterator<kotlin.String> [operator]
       overridden:
         public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.Set> declared in kotlin.collections.Set
       $this: VALUE_PARAMETER name:<this> type:<root>.MySet
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun iterator (): kotlin.collections.Iterator<kotlin.String> declared in <root>.MySet'
-          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+          CALL 'public final fun TODO (): kotlin.Nothing declared in kotlin' type=kotlin.Nothing origin=null
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.collections.Set
diff --git a/plugins/fir-plugin-prototype/testData/box/classWithAllPropertiesConstructor.fir.ir.txt b/plugins/fir-plugin-prototype/testData/box/classWithAllPropertiesConstructor.fir.ir.txt
index 2be835a4be4..c679309eb8a 100644
--- a/plugins/fir-plugin-prototype/testData/box/classWithAllPropertiesConstructor.fir.ir.txt
+++ b/plugins/fir-plugin-prototype/testData/box/classWithAllPropertiesConstructor.fir.ir.txt
@@ -210,7 +210,7 @@ FILE fqName:<root> fileName:/main.kt
           <T0>: java.lang.reflect.Constructor<<root>.Derived>
           arg0: CALL 'public final fun <get-javaConstructor> <T> (): java.lang.reflect.Constructor<T of kotlin.reflect.jvm.<get-javaConstructor>>? declared in kotlin.reflect.jvm' type=java.lang.reflect.Constructor<<root>.Derived>? origin=GET_PROPERTY
             <T>: <root>.Derived
-            $receiver: CALL 'public final fun first <T> (predicate: kotlin.Function1<T of kotlin.collections.CollectionsKt.first, kotlin.Boolean>): T of kotlin.collections.CollectionsKt.first declared in kotlin.collections.CollectionsKt' type=kotlin.reflect.KFunction<<root>.Derived> origin=null
+            $receiver: CALL 'public final fun first <T> (predicate: kotlin.Function1<T of kotlin.collections.first, kotlin.Boolean>): T of kotlin.collections.first declared in kotlin.collections' type=kotlin.reflect.KFunction<<root>.Derived> origin=null
               <T>: kotlin.reflect.KFunction<<root>.Derived>
               $receiver: CALL 'public abstract fun <get-constructors> (): kotlin.collections.Collection<kotlin.reflect.KFunction<T of kotlin.reflect.KClass>> declared in kotlin.reflect.KClass' type=kotlin.collections.Collection<kotlin.reflect.KFunction<<root>.Derived>> origin=GET_PROPERTY
                 $this: CLASS_REFERENCE 'CLASS CLASS name:Derived modality:FINAL visibility:public superTypes:[<root>.Base]' type=kotlin.reflect.KClass<<root>.Derived>