diff --git a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt
index dc8aa136fb8..6127597fcbe 100644
--- a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt
+++ b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt
@@ -847,7 +847,8 @@ class Fir2IrVisitor(
                 val ownerFunction = symbol.owner
                 if (ownerFunction.dispatchReceiverParameter != null) {
                     dispatchReceiver = qualifiedAccess.findIrDispatchReceiver()
-                } else if (ownerFunction.extensionReceiverParameter != null) {
+                }
+                if (ownerFunction.extensionReceiverParameter != null) {
                     extensionReceiver = qualifiedAccess.findIrExtensionReceiver()
                 }
                 this
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmIrCodegenFactory.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmIrCodegenFactory.kt
index f54407ee4a5..0d64263789f 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmIrCodegenFactory.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmIrCodegenFactory.kt
@@ -50,8 +50,7 @@ class JvmIrCodegenFactory(private val phaseConfig: PhaseConfig) : CodegenFactory
 
         val stubGenerator = irProviders.filterIsInstance<DeclarationStubGenerator>().first()
         for (descriptor in symbolTable.wrappedTopLevelCallableDescriptors()) {
-            descriptor as WrappedDeclarationDescriptor<*>
-            val parentClass = stubGenerator.generateOrGetFacadeClass(descriptor)
+            val parentClass = stubGenerator.generateOrGetFacadeClass(descriptor as WrappedDeclarationDescriptor<*>)
             descriptor.owner.parent = parentClass ?: throw AssertionError("Facade class for ${descriptor.name} not found")
         }
 
diff --git a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionAll.kt b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionAll.kt
index aeae04f9d47..bd701f507a2 100644
--- a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionAll.kt
+++ b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionAll.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class It {
 }
 
diff --git a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionHasNext.kt b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionHasNext.kt
index 3b7be492c73..fd0e52ec3f8 100644
--- a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionHasNext.kt
+++ b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionHasNext.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class It {
     operator fun next() = 5
 }
diff --git a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionNext.kt b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionNext.kt
index fbf25332d60..c7f347dd55c 100644
--- a/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionNext.kt
+++ b/compiler/testData/codegen/box/controlStructures/forLoopMemberExtensionNext.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // IGNORE_BACKEND: JS_IR
 // TODO: muted automatically, investigate should it be ran for JS or not
 // IGNORE_BACKEND: JS
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
index 4a1ba7089a4..d16105ac6b3 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 object A {
   fun Int.foo(a: Int = 1): Int {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
index ceb83b72ed6..35a3e575fe4 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class A {
   fun Int.foo(a: Int = 1): Int {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
index e5b1991f8c9..a18b571e32b 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class A {
   fun Double.foo(a: Double = 1.0): Double {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
index 28ff207bea0..844f5e88ef4 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class A {
     fun Double.foo(a: Double = 1.0, b: Double = 1.0): Double {
         return a + b
diff --git a/compiler/testData/codegen/box/extensionFunctions/kt1953_class.kt b/compiler/testData/codegen/box/extensionFunctions/kt1953_class.kt
index 5c031a11d04..7d394cff6da 100644
--- a/compiler/testData/codegen/box/extensionFunctions/kt1953_class.kt
+++ b/compiler/testData/codegen/box/extensionFunctions/kt1953_class.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // KJS_WITH_FULL_RUNTIME
 class A {
     private val sb: StringBuilder = StringBuilder()
diff --git a/compiler/testData/codegen/box/extensionFunctions/virtual.kt b/compiler/testData/codegen/box/extensionFunctions/virtual.kt
index 160f6081e15..cc8a6a72f1a 100644
--- a/compiler/testData/codegen/box/extensionFunctions/virtual.kt
+++ b/compiler/testData/codegen/box/extensionFunctions/virtual.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class Request(val path: String) {
 
 }
diff --git a/compiler/testData/codegen/box/functions/defaultargs3.kt b/compiler/testData/codegen/box/functions/defaultargs3.kt
index fa6214ec645..df755765779 100644
--- a/compiler/testData/codegen/box/functions/defaultargs3.kt
+++ b/compiler/testData/codegen/box/functions/defaultargs3.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 
 class C() {
     fun Any.toMyPrefixedString(prefix: String = "", suffix: String="") : String = prefix + " " + suffix
diff --git a/compiler/testData/codegen/box/functions/invoke/extensionInvokeOnExpr.kt b/compiler/testData/codegen/box/functions/invoke/extensionInvokeOnExpr.kt
index 88fff97e354..35496700fd7 100644
--- a/compiler/testData/codegen/box/functions/invoke/extensionInvokeOnExpr.kt
+++ b/compiler/testData/codegen/box/functions/invoke/extensionInvokeOnExpr.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class A
 
 class B {
diff --git a/compiler/testData/codegen/box/innerNested/kt5363.kt b/compiler/testData/codegen/box/innerNested/kt5363.kt
index 633af59bbc6..1f696893d3d 100644
--- a/compiler/testData/codegen/box/innerNested/kt5363.kt
+++ b/compiler/testData/codegen/box/innerNested/kt5363.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class Outer {
     class Nested{
         fun foo(s: String) = s.extension()
diff --git a/compiler/testData/codegen/box/properties/kt613.kt b/compiler/testData/codegen/box/properties/kt613.kt
index d3075a89f2e..4f55c044844 100644
--- a/compiler/testData/codegen/box/properties/kt613.kt
+++ b/compiler/testData/codegen/box/properties/kt613.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 package name
 
 class Test() {
diff --git a/compiler/testData/codegen/box/regressions/kt6153.kt b/compiler/testData/codegen/box/regressions/kt6153.kt
index 9374af34257..d2b703a5520 100644
--- a/compiler/testData/codegen/box/regressions/kt6153.kt
+++ b/compiler/testData/codegen/box/regressions/kt6153.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // KJS_WITH_FULL_RUNTIME
 // KT-6153 java.lang.IllegalStateException while building
 object Bug {
diff --git a/compiler/testData/codegen/box/smartCasts/implicitMemberReceiver.kt b/compiler/testData/codegen/box/smartCasts/implicitMemberReceiver.kt
index d83ae9faac1..f38fa9fd9b5 100644
--- a/compiler/testData/codegen/box/smartCasts/implicitMemberReceiver.kt
+++ b/compiler/testData/codegen/box/smartCasts/implicitMemberReceiver.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class A {
     open val a = "OK"
 }
diff --git a/compiler/testData/codegen/box/smartCasts/kt17725.kt b/compiler/testData/codegen/box/smartCasts/kt17725.kt
index 91a593e873b..71334c4f85b 100644
--- a/compiler/testData/codegen/box/smartCasts/kt17725.kt
+++ b/compiler/testData/codegen/box/smartCasts/kt17725.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class Bob {
     fun Bob.bar() = "OK"
 }
diff --git a/compiler/testData/codegen/box/traits/traitWithPrivateExtension.kt b/compiler/testData/codegen/box/traits/traitWithPrivateExtension.kt
index 9f93bd724be..5dee33c0792 100644
--- a/compiler/testData/codegen/box/traits/traitWithPrivateExtension.kt
+++ b/compiler/testData/codegen/box/traits/traitWithPrivateExtension.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class B {
     val p = "OK"
 }
diff --git a/compiler/testData/ir/irText/expressions/destructuring1.fir.txt b/compiler/testData/ir/irText/expressions/destructuring1.fir.txt
index e528d4d2978..daf90d02030 100644
--- a/compiler/testData/ir/irText/expressions/destructuring1.fir.txt
+++ b/compiler/testData/ir/irText/expressions/destructuring1.fir.txt
@@ -57,6 +57,8 @@ FILE fqName:<root> fileName:/destructuring1.kt
       VAR name:x type:kotlin.Int [val]
         CALL 'public final fun component1 (): kotlin.Int [operator] declared in <root>.B' type=kotlin.Int origin=null
           $this: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.test' type=<root>.A origin=null
+          $receiver: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.test' type=<root>.A origin=null
       VAR name:y type:kotlin.Int [val]
         CALL 'public final fun component2 (): kotlin.Int [operator] declared in <root>.B' type=kotlin.Int origin=null
           $this: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.test' type=<root>.A origin=null
+          $receiver: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.test' type=<root>.A origin=null
diff --git a/compiler/testData/ir/irText/types/nullChecks/nullabilityAssertionOnExtensionReceiver.fir.txt b/compiler/testData/ir/irText/types/nullChecks/nullabilityAssertionOnExtensionReceiver.fir.txt
index d159176e8a0..5606e1b25d3 100644
--- a/compiler/testData/ir/irText/types/nullChecks/nullabilityAssertionOnExtensionReceiver.fir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/nullabilityAssertionOnExtensionReceiver.fir.txt
@@ -34,3 +34,4 @@ FILE fqName:<root> fileName:/nullabilityAssertionOnExtensionReceiver.kt
     BLOCK_BODY
       CALL 'public final fun memberExtension (): kotlin.Unit declared in <root>.C' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.C declared in <root>.testMemberExt' type=<root>.C origin=null
+        $receiver: CALL 'public open fun s (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null