diff --git a/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java b/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java
index 4e06cc2514c..a6b966d76b5 100644
--- a/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java
+++ b/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java
@@ -1722,6 +1722,11 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
             runTest("compiler/testData/ir/irText/firProblems/candidateSymbol.kt");
         }
 
+        @TestMetadata("ClashResolutionDescriptor.kt")
+        public void testClashResolutionDescriptor() throws Exception {
+            runTest("compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.kt");
+        }
+
         @TestMetadata("DeepCopyIrTree.kt")
         public void testDeepCopyIrTree() throws Exception {
             runTest("compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt");
diff --git a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.txt b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.txt
new file mode 100644
index 00000000000..bc66ab5b44e
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.fir.txt
@@ -0,0 +1,176 @@
+FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
+  CLASS INTERFACE name:ComponentContainer modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ComponentContainer
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:PlatformSpecificExtension modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.PlatformSpecificExtension<S of <root>.PlatformSpecificExtension>
+    TYPE_PARAMETER name:S index:0 variance: superTypes:[<root>.PlatformSpecificExtension<S of <root>.PlatformSpecificExtension>]
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:ComponentDescriptor modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ComponentDescriptor
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:PlatformExtensionsClashResolver modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>
+    TYPE_PARAMETER name:E index:0 variance: superTypes:[<root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>]
+    CONSTRUCTOR visibility:public <> (applicableTo:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>) returnType:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> [primary]
+      VALUE_PARAMETER name:applicableTo index:0 type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:PlatformExtensionsClashResolver modality:ABSTRACT visibility:public superTypes:[kotlin.Any]'
+    PROPERTY name:applicableTo visibility:public modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:applicableTo type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'applicableTo: java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver.<init>' type=java.lang.Class<E of <root>.PlatformExtensionsClashResolver> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-applicableTo> visibility:public modality:FINAL <> ($this:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>) returnType:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>
+        correspondingProperty: PROPERTY name:applicableTo visibility:public modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun <get-applicableTo> (): java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:applicableTo type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver> visibility:private [final]' type=java.lang.Class<E of <root>.PlatformExtensionsClashResolver> origin=null
+              receiver: GET_VAR '<this>: <root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver.<get-applicableTo>' type=<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:ClashResolutionDescriptor modality:FINAL visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+    TYPE_PARAMETER name:E index:0 variance: superTypes:[<root>.PlatformSpecificExtension<E of <root>.ClashResolutionDescriptor>]
+    CONSTRUCTOR visibility:public <> (container:<root>.ComponentContainer, resolver:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>, clashedComponents:kotlin.collections.List<<root>.ComponentDescriptor>) returnType:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> [primary]
+      VALUE_PARAMETER name:container index:0 type:<root>.ComponentContainer
+      VALUE_PARAMETER name:resolver index:1 type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>
+      VALUE_PARAMETER name:clashedComponents index:2 type:kotlin.collections.List<<root>.ComponentDescriptor>
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:ClashResolutionDescriptor modality:FINAL visibility:public superTypes:[kotlin.Any]'
+    PROPERTY name:resolver visibility:private modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:resolver type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'resolver: <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<init>' type=<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-resolver> visibility:private modality:FINAL <> ($this:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>) returnType:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>
+        correspondingProperty: PROPERTY name:resolver visibility:private modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='private final fun <get-resolver> (): <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:resolver type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> visibility:private [final]' type=<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> origin=null
+              receiver: GET_VAR '<this>: <root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<get-resolver>' type=<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> origin=null
+    PROPERTY name:clashedComponents visibility:private modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:clashedComponents type:kotlin.collections.List<<root>.ComponentDescriptor> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'clashedComponents: kotlin.collections.List<<root>.ComponentDescriptor> declared in <root>.ClashResolutionDescriptor.<init>' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-clashedComponents> visibility:private modality:FINAL <> ($this:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>) returnType:kotlin.collections.List<<root>.ComponentDescriptor>
+        correspondingProperty: PROPERTY name:clashedComponents visibility:private modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='private final fun <get-clashedComponents> (): kotlin.collections.List<<root>.ComponentDescriptor> declared in <root>.ClashResolutionDescriptor'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:clashedComponents type:kotlin.collections.List<<root>.ComponentDescriptor> visibility:private [final]' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
+              receiver: GET_VAR '<this>: <root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<get-clashedComponents>' type=<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  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.hashMapOf, V of kotlin.collections.hashMapOf> [inline] 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>
+      correspondingProperty: PROPERTY name:registrationMap visibility:private modality:FINAL [val]
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='private final fun <get-registrationMap> (): java.util.HashMap<java.lang.reflect.Type, kotlin.Any> declared in <root>'
+          GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:registrationMap type:java.util.HashMap<java.lang.reflect.Type, kotlin.Any> visibility:private [final,static]' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any> origin=null
+  FUN name:resolveClashesIfAny visibility:public modality:FINAL <> (container:<root>.ComponentContainer, clashResolvers:kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:container index:0 type:<root>.ComponentContainer
+    VALUE_PARAMETER name:clashResolvers index:1 type:kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>>
+    BLOCK_BODY
+      BLOCK type=kotlin.Unit origin=FOR_LOOP
+        VAR FOR_LOOP_ITERATOR name:tmp_0 type:kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val]
+          CALL 'public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.List> [operator] declared in kotlin.collections.List' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=FOR_LOOP_ITERATOR
+            $this: GET_VAR 'clashResolvers: kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>> declared in <root>.resolveClashesIfAny' type=kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>> origin=null
+        WHILE label=null origin=FOR_LOOP_INNER_WHILE
+          condition: CALL 'public abstract fun hasNext (): kotlin.Boolean [operator] declared in kotlin.collections.Iterator' type=kotlin.Boolean origin=FOR_LOOP_HAS_NEXT
+            $this: GET_VAR 'val tmp_0: kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=null
+          body: BLOCK type=kotlin.Unit origin=FOR_LOOP_INNER_WHILE
+            VAR FOR_LOOP_VARIABLE name:resolver type:<root>.PlatformExtensionsClashResolver<*> [val]
+              CALL 'public abstract fun next (): T of kotlin.collections.Iterator [operator] declared in kotlin.collections.Iterator' type=<root>.PlatformExtensionsClashResolver<*> origin=FOR_LOOP_NEXT
+                $this: GET_VAR 'val tmp_0: kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=null
+            VAR name:clashedComponents type:kotlin.collections.Collection<<root>.ComponentDescriptor> [val]
+              BLOCK type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=ELVIS
+                VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:kotlin.collections.Collection<<root>.ComponentDescriptor>? [val]
+                  TYPE_OP type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=SAFE_CAST typeOperand=kotlin.collections.Collection<<root>.ComponentDescriptor>
+                    CALL 'public open fun get (p0: kotlin.Any?): V of java.util.HashMap? [operator] declared in java.util.HashMap' type=kotlin.Any? origin=null
+                      $this: CALL 'private final fun <get-registrationMap> (): java.util.HashMap<java.lang.reflect.Type, kotlin.Any> declared in <root>' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any> origin=GET_PROPERTY
+                      p0: CALL 'public final fun <get-applicableTo> (): java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver' type=java.lang.Class<<root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>> origin=GET_PROPERTY
+                        $this: GET_VAR 'val resolver: <root>.PlatformExtensionsClashResolver<*> [val] declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> origin=null
+                WHEN type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=ELVIS
+                  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_1: kotlin.collections.Collection<<root>.ComponentDescriptor>? [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=null
+                      arg1: CONST Null type=kotlin.Nothing? value=null
+                    then: CONTINUE label=null loop.label=null
+                  BRANCH
+                    if: CONST Boolean type=kotlin.Boolean value=true
+                    then: TYPE_OP type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=IMPLICIT_CAST typeOperand=kotlin.collections.Collection<<root>.ComponentDescriptor>
+                      GET_VAR 'val tmp_1: kotlin.collections.Collection<<root>.ComponentDescriptor>? [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=null
+            VAR name:substituteDescriptor type:<root>.ClashResolutionDescriptor<out <root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>> [val]
+              CONSTRUCTOR_CALL 'public constructor <init> (container: <root>.ComponentContainer, resolver: <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>, clashedComponents: kotlin.collections.List<<root>.ComponentDescriptor>) [primary] declared in <root>.ClashResolutionDescriptor' type=<root>.ClashResolutionDescriptor<out <root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>> origin=null
+                <class: E>: <root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>
+                container: GET_VAR 'container: <root>.ComponentContainer declared in <root>.resolveClashesIfAny' type=<root>.ComponentContainer origin=null
+                resolver: GET_VAR 'val resolver: <root>.PlatformExtensionsClashResolver<*> [val] declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> 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> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=null
diff --git a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.kt b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.kt
new file mode 100644
index 00000000000..6f4167a3881
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.kt
@@ -0,0 +1,32 @@
+// FULL_JDK
+// WITH_RUNTIME
+
+import java.lang.reflect.Type
+
+interface ComponentContainer
+
+interface PlatformSpecificExtension<S : PlatformSpecificExtension<S>>
+
+interface ComponentDescriptor
+
+abstract class PlatformExtensionsClashResolver<E : PlatformSpecificExtension<E>>(
+    val applicableTo: Class<E>
+)
+
+class ClashResolutionDescriptor<E : PlatformSpecificExtension<E>>(
+    container: ComponentContainer,
+    private val resolver: PlatformExtensionsClashResolver<E>,
+    private val clashedComponents: List<ComponentDescriptor>
+)
+
+private val registrationMap = hashMapOf<Type, Any>()
+
+fun resolveClashesIfAny(container: ComponentContainer, clashResolvers: List<PlatformExtensionsClashResolver<*>>) {
+    for (resolver in clashResolvers) {
+        val clashedComponents = registrationMap[resolver.applicableTo] as? Collection<ComponentDescriptor> ?: continue
+
+        val substituteDescriptor = ClashResolutionDescriptor(container, resolver, clashedComponents.toList())
+    }
+}
+
+
diff --git a/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.txt b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.txt
new file mode 100644
index 00000000000..523faf606fd
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.txt
@@ -0,0 +1,176 @@
+FILE fqName:<root> fileName:/ClashResolutionDescriptor.kt
+  CLASS INTERFACE name:ComponentContainer modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ComponentContainer
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:PlatformSpecificExtension modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.PlatformSpecificExtension<S of <root>.PlatformSpecificExtension>
+    TYPE_PARAMETER name:S index:0 variance: superTypes:[<root>.PlatformSpecificExtension<S of <root>.PlatformSpecificExtension>]
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:ComponentDescriptor modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ComponentDescriptor
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:PlatformExtensionsClashResolver modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>
+    TYPE_PARAMETER name:E index:0 variance: superTypes:[<root>.PlatformSpecificExtension<E of <root>.PlatformExtensionsClashResolver>]
+    CONSTRUCTOR visibility:public <> (applicableTo:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>) returnType:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> [primary]
+      VALUE_PARAMETER name:applicableTo index:0 type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:PlatformExtensionsClashResolver modality:ABSTRACT visibility:public superTypes:[kotlin.Any]'
+    PROPERTY name:applicableTo visibility:public modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:applicableTo type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'applicableTo: java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver.<init>' type=java.lang.Class<E of <root>.PlatformExtensionsClashResolver> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-applicableTo> visibility:public modality:FINAL <> ($this:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>) returnType:java.lang.Class<E of <root>.PlatformExtensionsClashResolver>
+        correspondingProperty: PROPERTY name:applicableTo visibility:public modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun <get-applicableTo> (): java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:applicableTo type:java.lang.Class<E of <root>.PlatformExtensionsClashResolver> visibility:private [final]' type=java.lang.Class<E of <root>.PlatformExtensionsClashResolver> origin=null
+              receiver: GET_VAR '<this>: <root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver.<get-applicableTo>' type=<root>.PlatformExtensionsClashResolver<E of <root>.PlatformExtensionsClashResolver> origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:ClashResolutionDescriptor modality:FINAL visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+    TYPE_PARAMETER name:E index:0 variance: superTypes:[<root>.PlatformSpecificExtension<E of <root>.ClashResolutionDescriptor>]
+    CONSTRUCTOR visibility:public <> (container:<root>.ComponentContainer, resolver:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>, clashedComponents:kotlin.collections.List<<root>.ComponentDescriptor>) returnType:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> [primary]
+      VALUE_PARAMETER name:container index:0 type:<root>.ComponentContainer
+      VALUE_PARAMETER name:resolver index:1 type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>
+      VALUE_PARAMETER name:clashedComponents index:2 type:kotlin.collections.List<<root>.ComponentDescriptor>
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:ClashResolutionDescriptor modality:FINAL visibility:public superTypes:[kotlin.Any]'
+    PROPERTY name:resolver visibility:private modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:resolver type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'resolver: <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<init>' type=<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-resolver> visibility:private modality:FINAL <> ($this:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>) returnType:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>
+        correspondingProperty: PROPERTY name:resolver visibility:private modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='private final fun <get-resolver> (): <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:resolver type:<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> visibility:private [final]' type=<root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor> origin=null
+              receiver: GET_VAR '<this>: <root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<get-resolver>' type=<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> origin=null
+    PROPERTY name:clashedComponents visibility:private modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:clashedComponents type:kotlin.collections.List<<root>.ComponentDescriptor> visibility:private [final]
+        EXPRESSION_BODY
+          GET_VAR 'clashedComponents: kotlin.collections.List<<root>.ComponentDescriptor> declared in <root>.ClashResolutionDescriptor.<init>' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-clashedComponents> visibility:private modality:FINAL <> ($this:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>) returnType:kotlin.collections.List<<root>.ComponentDescriptor>
+        correspondingProperty: PROPERTY name:clashedComponents visibility:private modality:FINAL [val]
+        $this: VALUE_PARAMETER name:<this> type:<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='private final fun <get-clashedComponents> (): kotlin.collections.List<<root>.ComponentDescriptor> declared in <root>.ClashResolutionDescriptor'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:clashedComponents type:kotlin.collections.List<<root>.ComponentDescriptor> visibility:private [final]' type=kotlin.collections.List<<root>.ComponentDescriptor> origin=null
+              receiver: GET_VAR '<this>: <root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> declared in <root>.ClashResolutionDescriptor.<get-clashedComponents>' type=<root>.ClashResolutionDescriptor<E of <root>.ClashResolutionDescriptor> origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  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.hashMapOf, V of kotlin.collections.hashMapOf>{ kotlin.collections.HashMap<K of kotlin.collections.hashMapOf, V of kotlin.collections.hashMapOf> } [inline] 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> }
+      correspondingProperty: PROPERTY name:registrationMap visibility:private modality:FINAL [val]
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='private final fun <get-registrationMap> (): java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } declared in <root>'
+          GET_FIELD '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]' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } origin=null
+  FUN name:resolveClashesIfAny visibility:public modality:FINAL <> (container:<root>.ComponentContainer, clashResolvers:kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:container index:0 type:<root>.ComponentContainer
+    VALUE_PARAMETER name:clashResolvers index:1 type:kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>>
+    BLOCK_BODY
+      BLOCK type=kotlin.Unit origin=FOR_LOOP
+        VAR FOR_LOOP_ITERATOR name:tmp_0 type:kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val]
+          CALL 'public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.List> [operator] declared in kotlin.collections.List' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=FOR_LOOP_ITERATOR
+            $this: GET_VAR 'clashResolvers: kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>> declared in <root>.resolveClashesIfAny' type=kotlin.collections.List<<root>.PlatformExtensionsClashResolver<*>> origin=null
+        WHILE label=null origin=FOR_LOOP_INNER_WHILE
+          condition: CALL 'public abstract fun hasNext (): kotlin.Boolean [operator] declared in kotlin.collections.Iterator' type=kotlin.Boolean origin=FOR_LOOP_HAS_NEXT
+            $this: GET_VAR 'val tmp_0: kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=null
+          body: BLOCK type=kotlin.Unit origin=FOR_LOOP_INNER_WHILE
+            VAR FOR_LOOP_VARIABLE name:resolver type:<root>.PlatformExtensionsClashResolver<*> [val]
+              CALL 'public abstract fun next (): T of kotlin.collections.Iterator [operator] declared in kotlin.collections.Iterator' type=<root>.PlatformExtensionsClashResolver<*> origin=FOR_LOOP_NEXT
+                $this: GET_VAR 'val tmp_0: kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Iterator<<root>.PlatformExtensionsClashResolver<*>> origin=null
+            BLOCK type=kotlin.Unit origin=null
+              VAR name:clashedComponents type:kotlin.collections.Collection<<root>.ComponentDescriptor> [val]
+                BLOCK type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=ELVIS
+                  VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:kotlin.collections.Collection<<root>.ComponentDescriptor>? [val]
+                    TYPE_OP type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=SAFE_CAST typeOperand=kotlin.collections.Collection<<root>.ComponentDescriptor>
+                      CALL 'public open fun get (key: @[EnhancedNullability] K of java.util.HashMap): @[EnhancedNullability] V of java.util.HashMap? [operator] declared in java.util.HashMap' type=@[EnhancedNullability] kotlin.Any? origin=GET_ARRAY_ELEMENT
+                        $this: CALL 'private final fun <get-registrationMap> (): java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } declared in <root>' type=java.util.HashMap<java.lang.reflect.Type, kotlin.Any>{ kotlin.collections.HashMap<java.lang.reflect.Type, kotlin.Any> } origin=GET_PROPERTY
+                        key: CALL 'public final fun <get-applicableTo> (): java.lang.Class<E of <root>.PlatformExtensionsClashResolver> declared in <root>.PlatformExtensionsClashResolver' type=java.lang.Class<out <root>.PlatformSpecificExtension<*>> origin=GET_PROPERTY
+                          $this: GET_VAR 'val resolver: <root>.PlatformExtensionsClashResolver<*> [val] declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> origin=null
+                  WHEN type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=null
+                    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_1: kotlin.collections.Collection<<root>.ComponentDescriptor>? [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=null
+                        arg1: CONST Null type=kotlin.Nothing? value=null
+                      then: CONTINUE label=null loop.label=null
+                    BRANCH
+                      if: CONST Boolean type=kotlin.Boolean value=true
+                      then: GET_VAR 'val tmp_1: kotlin.collections.Collection<<root>.ComponentDescriptor>? [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor>? origin=null
+              VAR name:substituteDescriptor type:<root>.ClashResolutionDescriptor<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out kotlin.Any?>>>>>> [val]
+                CONSTRUCTOR_CALL 'public constructor <init> (container: <root>.ComponentContainer, resolver: <root>.PlatformExtensionsClashResolver<E of <root>.ClashResolutionDescriptor>, clashedComponents: kotlin.collections.List<<root>.ComponentDescriptor>) [primary] declared in <root>.ClashResolutionDescriptor' type=<root>.ClashResolutionDescriptor<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out <root>.PlatformSpecificExtension<out kotlin.Any?>>>>>> origin=null
+                  <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<*> [val] declared in <root>.resolveClashesIfAny' type=<root>.PlatformExtensionsClashResolver<*> 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> [val] declared in <root>.resolveClashesIfAny' type=kotlin.collections.Collection<<root>.ComponentDescriptor> origin=null
diff --git a/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java b/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
index 5bdde0fd673..396dfd0c29c 100644
--- a/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
@@ -1721,6 +1721,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
             runTest("compiler/testData/ir/irText/firProblems/candidateSymbol.kt");
         }
 
+        @TestMetadata("ClashResolutionDescriptor.kt")
+        public void testClashResolutionDescriptor() throws Exception {
+            runTest("compiler/testData/ir/irText/firProblems/ClashResolutionDescriptor.kt");
+        }
+
         @TestMetadata("DeepCopyIrTree.kt")
         public void testDeepCopyIrTree() throws Exception {
             runTest("compiler/testData/ir/irText/firProblems/DeepCopyIrTree.kt");