From da9f0e7af8e59ab351799b65c670c1ad7980bf1e Mon Sep 17 00:00:00 2001
From: Sergej Jaskiewicz <sergej.jaskiewicz@jetbrains.com>
Date: Fri, 12 Jan 2024 18:39:39 +0100
Subject: [PATCH] [test] Get rid of SKIP_SIGNATURE_DUMP directive in irText
 tests

Sometimes there are legitimate reasons to have two separate signature
dumps for K1 and K2.

^KT-61797 Fixed
---
 .../classes/delegatedGenericImplementation.kt |   3 -
 .../delegatedGenericImplementation.sig.kt.txt | 172 +++++
 ...plementationOfJavaInterface.fir.sig.kt.txt |  58 ++
 .../delegatedImplementationOfJavaInterface.kt |   2 +-
 ...edImplementationOfJavaInterface.sig.kt.txt |  58 ++
 .../ir/irText/classes/kt45853.fir.sig.kt.txt  |  52 ++
 .../testData/ir/irText/classes/kt45853.kt     |   2 +-
 .../ir/irText/classes/kt45853.sig.kt.txt      |  52 ++
 .../ir/irText/classes/kt45934.fir.sig.kt.txt  |  17 +
 .../testData/ir/irText/classes/kt45934.kt     |   2 +-
 .../ir/irText/classes/kt45934.sig.kt.txt      |  11 +
 .../annotationsOnDelegatedMembers.kt          |   3 -
 .../annotationsOnDelegatedMembers.sig.kt.txt  | 119 ++++
 .../enumEntriesWithAnnotations.fir.sig.kt.txt | 252 +++++++
 .../annotations/enumEntriesWithAnnotations.kt |   2 +-
 .../enumEntriesWithAnnotations.sig.kt.txt     | 253 +++++++
 ...tionWithSingleArrayArgument.fir.sig.kt.txt | 246 +++++++
 .../javaAnnotationWithSingleArrayArgument.kt  |   2 +-
 ...notationWithSingleArrayArgument.sig.kt.txt | 246 +++++++
 ...eratorInAnnotationArguments.fir.sig.kt.txt |  33 +
 .../spreadOperatorInAnnotationArguments.kt    |   4 +-
 ...adOperatorInAnnotationArguments.sig.kt.txt |  33 +
 .../declarations/typeAlias.fir.sig.kt.txt     |  22 +
 .../ir/irText/declarations/typeAlias.kt       |   2 +-
 .../irText/declarations/typeAlias.sig.kt.txt  |  26 +
 ...ReferenceFromEnumEntryClass.fir.sig.kt.txt | 266 ++++++++
 .../enumEntryReferenceFromEnumEntryClass.kt   |   2 +-
 ...ntryReferenceFromEnumEntryClass.sig.kt.txt | 265 ++++++++
 .../AbstractMutableMap.fir.sig.kt.txt         | 193 ++++++
 .../irText/firProblems/AbstractMutableMap.kt  |   2 +-
 .../firProblems/AbstractMutableMap.sig.kt.txt | 181 +++++
 .../ArrayListOverrides.fir.sig.kt.txt         | 477 +++++++++++++
 .../irText/firProblems/ArrayListOverrides.kt  |   2 +-
 .../firProblems/ArrayListOverrides.sig.kt.txt | 477 +++++++++++++
 .../ir/irText/firProblems/IntArrayAsVararg.kt |   1 -
 .../firProblems/IntArrayAsVararg.sig.kt.txt   |  19 +
 .../firProblems/MultiList.fir.sig.kt.txt      | 631 ++++++++++++++++++
 .../ir/irText/firProblems/MultiList.kt        |   2 +-
 .../irText/firProblems/MultiList.sig.kt.txt   | 631 ++++++++++++++++++
 .../delegatedSetterShouldBeSpecialized.kt     |   1 -
 ...egatedSetterShouldBeSpecialized.sig.kt.txt |  51 ++
 .../substitutionOverrideWithDelegate.kt       |   1 -
 ...ubstitutionOverrideWithDelegate.sig.kt.txt |  95 +++
 .../types/rawTypeInSignature.fir.sig.kt.txt   | 113 ++++
 .../ir/irText/types/rawTypeInSignature.kt     |   2 +-
 .../types/rawTypeInSignature.sig.kt.txt       | 113 ++++
 .../IrMangledNameAndSignatureDumpHandler.kt   |  22 +-
 .../test/directives/CodegenTestDirectives.kt  |   9 +-
 48 files changed, 5200 insertions(+), 28 deletions(-)
 create mode 100644 compiler/testData/ir/irText/classes/delegatedGenericImplementation.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/kt45853.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/kt45853.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/kt45934.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/classes/kt45934.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/typeAlias.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/declarations/typeAlias.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/AbstractMutableMap.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/ArrayListOverrides.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/ArrayListOverrides.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/IntArrayAsVararg.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/MultiList.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/MultiList.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/types/rawTypeInSignature.fir.sig.kt.txt
 create mode 100644 compiler/testData/ir/irText/types/rawTypeInSignature.sig.kt.txt

diff --git a/compiler/testData/ir/irText/classes/delegatedGenericImplementation.kt b/compiler/testData/ir/irText/classes/delegatedGenericImplementation.kt
index 20ee470e782..529f811ae3f 100644
--- a/compiler/testData/ir/irText/classes/delegatedGenericImplementation.kt
+++ b/compiler/testData/ir/irText/classes/delegatedGenericImplementation.kt
@@ -1,6 +1,3 @@
-// SKIP_SIGNATURE_DUMP
-// ^ K1 generates a useless delegate field for the Test2 class, K2 does not
-
 interface IBase<A> {
     fun <B> foo(a: A, b: B)
     val <C> C.id: Map<A, C>?
diff --git a/compiler/testData/ir/irText/classes/delegatedGenericImplementation.sig.kt.txt b/compiler/testData/ir/irText/classes/delegatedGenericImplementation.sig.kt.txt
new file mode 100644
index 00000000000..a5174e3acad
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/delegatedGenericImplementation.sig.kt.txt
@@ -0,0 +1,172 @@
+// CHECK:
+//   Mangled name: Test1
+//   Public signature: /Test1|null[0]
+class Test1<E : Any?> : IBase<E> {
+  // CHECK:
+  //   Mangled name: Test1#<init>(IBase<1:0>){}
+  //   Public signature: /Test1.<init>|-3017997426280513504[0]
+  //   Public signature debug description: <init>(IBase<1:0>){}
+  constructor(i: IBase<E>) /* primary */
+
+  // CHECK:
+  //   Mangled name: Test1#foo(1:0;0:0){0§<kotlin.Any?>}
+  //   Public signature: /Test1.foo|406069289574534187[0]
+  //   Public signature debug description: foo(1:0;0:0){0§<kotlin.Any?>}
+  override fun <B : Any?> foo(a: E, b: B): Unit
+
+  // CHECK:
+  //   Mangled name: Test1@0:0{0§<kotlin.Any?>}id
+  //   Public signature: /Test1.id|6409895071901545951[0]
+  //   Public signature debug description: @0:0{0§<kotlin.Any?>}id
+  override val <C : Any?> C.id: Map<E, C>?
+    // CHECK JVM_IR:
+    //   Mangled name: Test1#<get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<1:0,0:0>?
+    //   Public signature: /Test1.id.<get-id>|-1161899104741266586[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<1:0,0:0>?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Test1#<get-id>@0:0(){0§<kotlin.Any?>}
+    //   Public signature: /Test1.id.<get-id>|-1537502770664138716[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}
+    override get(): Map<E, C>?
+
+  // CHECK:
+  //   Mangled name: Test1@kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  //   Public signature: /Test1.x|-197950632589282220[0]
+  //   Public signature debug description: @kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  override var <D : Any?> List<D>.x: D?
+    // CHECK JVM_IR:
+    //   Mangled name: Test1#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    //   Public signature: /Test1.x.<get-x>|1915131689713400313[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Test1#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    //   Public signature: /Test1.x.<get-x>|-7897041295469127828[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    override get(): D?
+    // CHECK:
+    //   Mangled name: Test1#<set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    //   Public signature: /Test1.x.<set-x>|7048513426934671771[0]
+    //   Public signature debug description: <set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    override set(<set-?>: D?): Unit
+
+}
+
+// CHECK:
+//   Mangled name: Test2
+//   Public signature: /Test2|null[0]
+class Test2 : IBase<String> {
+  // CHECK:
+  //   Mangled name: Test2{}j
+  //   Public signature: /Test2.j|-6836075379230315579[0]
+  //   Public signature debug description: {}j
+  var j: IBase<String>
+    // CHECK JVM_IR:
+    //   Mangled name: Test2#<get-j>(){}IBase<kotlin.String>
+    //   Public signature: /Test2.j.<get-j>|-6883763672420899739[0]
+    //   Public signature debug description: <get-j>(){}IBase<kotlin.String>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Test2#<get-j>(){}
+    //   Public signature: /Test2.j.<get-j>|5087577794943671660[0]
+    //   Public signature debug description: <get-j>(){}
+    get
+    // CHECK:
+    //   Mangled name: Test2#<set-j>(IBase<kotlin.String>){}
+    //   Public signature: /Test2.j.<set-j>|4329154110216130240[0]
+    //   Public signature debug description: <set-j>(IBase<kotlin.String>){}
+    set
+
+  // CHECK:
+  //   Mangled name: Test2#<init>(IBase<kotlin.String>){}
+  //   Public signature: /Test2.<init>|4395202944622832808[0]
+  //   Public signature debug description: <init>(IBase<kotlin.String>){}
+  constructor(j: IBase<String>) /* primary */
+
+  // CHECK:
+  //   Mangled name: Test2#foo(kotlin.String;0:0){0§<kotlin.Any?>}
+  //   Public signature: /Test2.foo|3497909443104319155[0]
+  //   Public signature debug description: foo(kotlin.String;0:0){0§<kotlin.Any?>}
+  override fun <B : Any?> foo(a: String, b: B): Unit
+
+  // CHECK:
+  //   Mangled name: Test2@0:0{0§<kotlin.Any?>}id
+  //   Public signature: /Test2.id|6409895071901545951[0]
+  //   Public signature debug description: @0:0{0§<kotlin.Any?>}id
+  override val <C : Any?> C.id: Map<String, C>?
+    // CHECK JVM_IR:
+    //   Mangled name: Test2#<get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<kotlin.String,0:0>?
+    //   Public signature: /Test2.id.<get-id>|5038832815964071118[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<kotlin.String,0:0>?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Test2#<get-id>@0:0(){0§<kotlin.Any?>}
+    //   Public signature: /Test2.id.<get-id>|-1537502770664138716[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}
+    override get(): Map<String, C>?
+
+  // CHECK:
+  //   Mangled name: Test2@kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  //   Public signature: /Test2.x|-197950632589282220[0]
+  //   Public signature debug description: @kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  override var <D : Any?> List<D>.x: D?
+    // CHECK JVM_IR:
+    //   Mangled name: Test2#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    //   Public signature: /Test2.x.<get-x>|1915131689713400313[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Test2#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    //   Public signature: /Test2.x.<get-x>|-7897041295469127828[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    override get(): D?
+    // CHECK:
+    //   Mangled name: Test2#<set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    //   Public signature: /Test2.x.<set-x>|7048513426934671771[0]
+    //   Public signature debug description: <set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    override set(<set-?>: D?): Unit
+
+}
+
+// CHECK:
+//   Mangled name: IBase
+//   Public signature: /IBase|null[0]
+interface IBase<A : Any?> {
+  // CHECK:
+  //   Mangled name: IBase#foo(1:0;0:0){0§<kotlin.Any?>}
+  //   Public signature: /IBase.foo|406069289574534187[0]
+  //   Public signature debug description: foo(1:0;0:0){0§<kotlin.Any?>}
+  abstract fun <B : Any?> foo(a: A, b: B): Unit
+
+  // CHECK:
+  //   Mangled name: IBase@0:0{0§<kotlin.Any?>}id
+  //   Public signature: /IBase.id|6409895071901545951[0]
+  //   Public signature debug description: @0:0{0§<kotlin.Any?>}id
+  abstract val <C : Any?> C.id: Map<A, C>?
+    // CHECK JVM_IR:
+    //   Mangled name: IBase#<get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<1:0,0:0>?
+    //   Public signature: /IBase.id.<get-id>|-1161899104741266586[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}kotlin.collections.Map<1:0,0:0>?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: IBase#<get-id>@0:0(){0§<kotlin.Any?>}
+    //   Public signature: /IBase.id.<get-id>|-1537502770664138716[0]
+    //   Public signature debug description: <get-id>@0:0(){0§<kotlin.Any?>}
+    abstract get
+
+  // CHECK:
+  //   Mangled name: IBase@kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  //   Public signature: /IBase.x|-197950632589282220[0]
+  //   Public signature debug description: @kotlin.collections.List<0:0>{0§<kotlin.Any?>}x
+  abstract var <D : Any?> List<D>.x: D?
+    // CHECK JVM_IR:
+    //   Mangled name: IBase#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    //   Public signature: /IBase.x.<get-x>|1915131689713400313[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}0:0?
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: IBase#<get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    //   Public signature: /IBase.x.<get-x>|-7897041295469127828[0]
+    //   Public signature debug description: <get-x>@kotlin.collections.List<0:0>(){0§<kotlin.Any?>}
+    abstract get
+    // CHECK:
+    //   Mangled name: IBase#<set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    //   Public signature: /IBase.x.<set-x>|7048513426934671771[0]
+    //   Public signature debug description: <set-x>@kotlin.collections.List<0:0>(0:0?){0§<kotlin.Any?>}
+    abstract set
+
+}
diff --git a/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.fir.sig.kt.txt b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.fir.sig.kt.txt
new file mode 100644
index 00000000000..77ebe81ece8
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.fir.sig.kt.txt
@@ -0,0 +1,58 @@
+// CHECK:
+//   Mangled name: Test
+//   Public signature: /Test|null[0]
+class Test : J {
+  // CHECK:
+  //   Mangled name: Test{}j
+  //   Public signature: /Test.j|-6836075379230315579[0]
+  //   Public signature debug description: {}j
+  private val j: J
+    // CHECK JVM_IR:
+    //   Mangled name: Test#<get-j>(){}J
+    //   Public signature: /Test.j.<get-j>|-6114050685652754863[0]
+    //   Public signature debug description: <get-j>(){}J
+    private get
+
+  // CHECK:
+  //   Mangled name: Test#<init>(J){}
+  //   Public signature: /Test.<init>|1083383516528472352[0]
+  //   Public signature debug description: <init>(J){}
+  constructor(j: J) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnNotNull(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /Test.returnNotNull|-3682895453084642874[0]
+  //   Public signature debug description: returnNotNull(){}kotlin.String{EnhancedNullability}
+  override fun returnNotNull(): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnNullable(){}kotlin.String?
+  //   Public signature: /Test.returnNullable|-8543835017469041188[0]
+  //   Public signature debug description: returnNullable(){}kotlin.String?
+  override fun returnNullable(): String?
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnsFlexible(){}kotlin.String?
+  //   Public signature: /Test.returnsFlexible|-5946143652599840920[0]
+  //   Public signature debug description: returnsFlexible(){}kotlin.String?
+  override fun returnsFlexible(): String?
+
+  // CHECK:
+  //   Mangled name: Test#takeFlexible(kotlin.String?){}
+  //   Public signature: /Test.takeFlexible|8434697244780181625[0]
+  //   Public signature debug description: takeFlexible(kotlin.String?){}
+  override fun takeFlexible(x: String?): Unit
+
+  // CHECK:
+  //   Mangled name: Test#takeNotNull(kotlin.String{EnhancedNullability}){}
+  //   Public signature: /Test.takeNotNull|2138033560695328162[0]
+  //   Public signature debug description: takeNotNull(kotlin.String{EnhancedNullability}){}
+  override fun takeNotNull(x: @EnhancedNullability String): Unit
+
+  // CHECK:
+  //   Mangled name: Test#takeNullable(kotlin.String?){}
+  //   Public signature: /Test.takeNullable|5724815424219841897[0]
+  //   Public signature debug description: takeNullable(kotlin.String?){}
+  override fun takeNullable(x: String?): Unit
+
+}
diff --git a/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.kt b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.kt
index c958050fec7..198eb165f74 100644
--- a/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.kt
+++ b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.kt
@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Fake overrides have divirging @EnhancedNullability in K1 and K2
 
 // FILE: delegatedImplementationOfJavaInterface.kt
diff --git a/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.sig.kt.txt b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.sig.kt.txt
new file mode 100644
index 00000000000..5b262501495
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/delegatedImplementationOfJavaInterface.sig.kt.txt
@@ -0,0 +1,58 @@
+// CHECK:
+//   Mangled name: Test
+//   Public signature: /Test|null[0]
+class Test : J {
+  // CHECK:
+  //   Mangled name: Test{}j
+  //   Public signature: /Test.j|-6836075379230315579[0]
+  //   Public signature debug description: {}j
+  private val j: J
+    // CHECK JVM_IR:
+    //   Mangled name: Test#<get-j>(){}J
+    //   Public signature: /Test.j.<get-j>|-6114050685652754863[0]
+    //   Public signature debug description: <get-j>(){}J
+    private get
+
+  // CHECK:
+  //   Mangled name: Test#<init>(J){}
+  //   Public signature: /Test.<init>|1083383516528472352[0]
+  //   Public signature debug description: <init>(J){}
+  constructor(j: J) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnNotNull(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /Test.returnNotNull|-3682895453084642874[0]
+  //   Public signature debug description: returnNotNull(){}kotlin.String{EnhancedNullability}
+  override fun returnNotNull(): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnNullable(){}kotlin.String?{EnhancedNullability}
+  //   Public signature: /Test.returnNullable|-404622903433277680[0]
+  //   Public signature debug description: returnNullable(){}kotlin.String?{EnhancedNullability}
+  override fun returnNullable(): @EnhancedNullability String?
+
+  // CHECK JVM_IR:
+  //   Mangled name: Test#returnsFlexible(){}kotlin.String?
+  //   Public signature: /Test.returnsFlexible|-5946143652599840920[0]
+  //   Public signature debug description: returnsFlexible(){}kotlin.String?
+  override fun returnsFlexible(): String?
+
+  // CHECK:
+  //   Mangled name: Test#takeFlexible(kotlin.String?){}
+  //   Public signature: /Test.takeFlexible|8434697244780181625[0]
+  //   Public signature debug description: takeFlexible(kotlin.String?){}
+  override fun takeFlexible(x: String?): Unit
+
+  // CHECK:
+  //   Mangled name: Test#takeNotNull(kotlin.String{EnhancedNullability}){}
+  //   Public signature: /Test.takeNotNull|2138033560695328162[0]
+  //   Public signature debug description: takeNotNull(kotlin.String{EnhancedNullability}){}
+  override fun takeNotNull(x: @EnhancedNullability String): Unit
+
+  // CHECK:
+  //   Mangled name: Test#takeNullable(kotlin.String?{EnhancedNullability}){}
+  //   Public signature: /Test.takeNullable|-558980523272297075[0]
+  //   Public signature debug description: takeNullable(kotlin.String?{EnhancedNullability}){}
+  override fun takeNullable(x: @EnhancedNullability String?): Unit
+
+}
diff --git a/compiler/testData/ir/irText/classes/kt45853.fir.sig.kt.txt b/compiler/testData/ir/irText/classes/kt45853.fir.sig.kt.txt
new file mode 100644
index 00000000000..57cdc559b96
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt45853.fir.sig.kt.txt
@@ -0,0 +1,52 @@
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+abstract class A {
+  // CHECK:
+  //   Mangled name: A#<init>(){}
+  //   Public signature: /A.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: A{}a
+  //   Public signature: /A.a|-1200697420457237799[0]
+  //   Public signature debug description: {}a
+  abstract val a: A?
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-a>(){}A?
+    //   Public signature: /A.a.<get-a>|-5866676359912206759[0]
+    //   Public signature debug description: <get-a>(){}A?
+    abstract get
+
+}
+
+// CHECK:
+//   Mangled name: B
+//   Public signature: /B|null[0]
+class B : AX {
+  // CHECK:
+  //   Mangled name: B#<init>(){}
+  //   Public signature: /B.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: B#getA(){}X?
+  //   Public signature: /B.getA|-186252691497860920[0]
+  //   Public signature debug description: getA(){}X?
+  override fun getA(): X?
+
+  // CHECK:
+  //   Mangled name: B{}a
+  //   Public signature: /B.a|-1200697420457237799[0]
+  //   Public signature debug description: {}a
+  /* fake */ override val a: AX?
+    // CHECK JVM_IR:
+    //   Mangled name: B#<get-a>(){}AX?
+    //   Public signature: /B.a.<get-a>|243290884802757470[0]
+    //   Public signature debug description: <get-a>(){}AX?
+    @Override
+    /* fake */ override get(): AX?
+
+}
diff --git a/compiler/testData/ir/irText/classes/kt45853.kt b/compiler/testData/ir/irText/classes/kt45853.kt
index f7b178dada9..82e040b54e1 100644
--- a/compiler/testData/ir/irText/classes/kt45853.kt
+++ b/compiler/testData/ir/irText/classes/kt45853.kt
@@ -3,7 +3,7 @@
 // DUMP_EXTERNAL_CLASS: X
 // DUMP_EXTERNAL_CLASS: AX
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Fake overrides have divirging @EnhancedNullability in K1 and K2
 
 // FILE: kt45853.kt
diff --git a/compiler/testData/ir/irText/classes/kt45853.sig.kt.txt b/compiler/testData/ir/irText/classes/kt45853.sig.kt.txt
new file mode 100644
index 00000000000..d02d96fc420
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt45853.sig.kt.txt
@@ -0,0 +1,52 @@
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+abstract class A {
+  // CHECK:
+  //   Mangled name: A#<init>(){}
+  //   Public signature: /A.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: A{}a
+  //   Public signature: /A.a|-1200697420457237799[0]
+  //   Public signature debug description: {}a
+  abstract val a: A?
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-a>(){}A?
+    //   Public signature: /A.a.<get-a>|-5866676359912206759[0]
+    //   Public signature debug description: <get-a>(){}A?
+    abstract get
+
+}
+
+// CHECK:
+//   Mangled name: B
+//   Public signature: /B|null[0]
+class B : AX {
+  // CHECK:
+  //   Mangled name: B#<init>(){}
+  //   Public signature: /B.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: B#getA(){}X?
+  //   Public signature: /B.getA|-186252691497860920[0]
+  //   Public signature debug description: getA(){}X?
+  override fun getA(): X?
+
+  // CHECK:
+  //   Mangled name: B{}a
+  //   Public signature: /B.a|-1200697420457237799[0]
+  //   Public signature debug description: {}a
+  /* fake */ override val a: @EnhancedNullability AX?
+    // CHECK JVM_IR:
+    //   Mangled name: B#<get-a>(){}AX?{EnhancedNullability}
+    //   Public signature: /B.a.<get-a>|1682004550888840418[0]
+    //   Public signature debug description: <get-a>(){}AX?{EnhancedNullability}
+    @Override
+    /* fake */ override get(): @EnhancedNullability AX?
+
+}
diff --git a/compiler/testData/ir/irText/classes/kt45934.fir.sig.kt.txt b/compiler/testData/ir/irText/classes/kt45934.fir.sig.kt.txt
new file mode 100644
index 00000000000..5694a4e8155
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt45934.fir.sig.kt.txt
@@ -0,0 +1,17 @@
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C : I {
+  // CHECK:
+  //   Mangled name: C#<init>(J){}
+  //   Public signature: /C.<init>|1083383516528472352[0]
+  //   Public signature debug description: <init>(J){}
+  constructor(client: J) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: C#foo(){0§<kotlin.Any?>}kotlin.collections.MutableList<0:0?>?
+  //   Public signature: /C.foo|1528742332167339732[0]
+  //   Public signature debug description: foo(){0§<kotlin.Any?>}kotlin.collections.MutableList<0:0?>?
+  override fun <C : Any?> foo(): MutableList<C?>?
+
+}
diff --git a/compiler/testData/ir/irText/classes/kt45934.kt b/compiler/testData/ir/irText/classes/kt45934.kt
index db68e5acf6d..6c95a05313e 100644
--- a/compiler/testData/ir/irText/classes/kt45934.kt
+++ b/compiler/testData/ir/irText/classes/kt45934.kt
@@ -1,7 +1,7 @@
 // TARGET_BACKEND: JVM
 // SKIP_KT_DUMP
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ K2 generates an override for foo in C, K1 does not
 
 // FILE: kt45934.kt
diff --git a/compiler/testData/ir/irText/classes/kt45934.sig.kt.txt b/compiler/testData/ir/irText/classes/kt45934.sig.kt.txt
new file mode 100644
index 00000000000..ec33f0e75f9
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt45934.sig.kt.txt
@@ -0,0 +1,11 @@
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C : I {
+  // CHECK:
+  //   Mangled name: C#<init>(J){}
+  //   Public signature: /C.<init>|1083383516528472352[0]
+  //   Public signature debug description: <init>(J){}
+  constructor(client: J) /* primary */
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.kt b/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.kt
index 8548fb4a23b..b0f44d19f44 100644
--- a/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.kt
@@ -1,6 +1,3 @@
-// SKIP_SIGNATURE_DUMP
-// ^ Difference in annotations generated by K1 and K2
-
 annotation class Ann
 
 interface IFoo {
diff --git a/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.sig.kt.txt
new file mode 100644
index 00000000000..60ae67a57fd
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/annotationsOnDelegatedMembers.sig.kt.txt
@@ -0,0 +1,119 @@
+// CHECK:
+//   Mangled name: Ann
+//   Public signature: /Ann|null[0]
+open annotation class Ann : Annotation {
+  // CHECK:
+  //   Mangled name: Ann#<init>(){}
+  //   Public signature: /Ann.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: DFoo
+//   Public signature: /DFoo|null[0]
+class DFoo : IFoo {
+  // CHECK:
+  //   Mangled name: DFoo#<init>(IFoo){}
+  //   Public signature: /DFoo.<init>|-657369904845510135[0]
+  //   Public signature debug description: <init>(IFoo){}
+  constructor(d: IFoo) /* primary */
+
+  // CHECK:
+  //   Mangled name: DFoo#testExtFun@kotlin.String(){}
+  //   Public signature: /DFoo.testExtFun|-4671785829303171989[0]
+  //   Public signature debug description: testExtFun@kotlin.String(){}
+  @Ann
+  override fun String.testExtFun(): Unit
+
+  // CHECK:
+  //   Mangled name: DFoo#testFun(){}
+  //   Public signature: /DFoo.testFun|6322333980269160703[0]
+  //   Public signature debug description: testFun(){}
+  @Ann
+  override fun testFun(): Unit
+
+  // CHECK:
+  //   Mangled name: DFoo@kotlin.String{}testExtVal
+  //   Public signature: /DFoo.testExtVal|-6269693357376137188[0]
+  //   Public signature debug description: @kotlin.String{}testExtVal
+  override val String.testExtVal: String
+    // CHECK JVM_IR:
+    //   Mangled name: DFoo#<get-testExtVal>@kotlin.String(){}kotlin.String
+    //   Public signature: /DFoo.testExtVal.<get-testExtVal>|4035393032845602237[0]
+    //   Public signature debug description: <get-testExtVal>@kotlin.String(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: DFoo#<get-testExtVal>@kotlin.String(){}
+    //   Public signature: /DFoo.testExtVal.<get-testExtVal>|8692242155954463066[0]
+    //   Public signature debug description: <get-testExtVal>@kotlin.String(){}
+    override get(): String
+
+  // CHECK:
+  //   Mangled name: DFoo{}testVal
+  //   Public signature: /DFoo.testVal|2839078120601828782[0]
+  //   Public signature debug description: {}testVal
+  override val testVal: String
+    // CHECK JVM_IR:
+    //   Mangled name: DFoo#<get-testVal>(){}kotlin.String
+    //   Public signature: /DFoo.testVal.<get-testVal>|-8940261368877498423[0]
+    //   Public signature debug description: <get-testVal>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: DFoo#<get-testVal>(){}
+    //   Public signature: /DFoo.testVal.<get-testVal>|-3119877793352707332[0]
+    //   Public signature debug description: <get-testVal>(){}
+    override get(): String
+
+}
+
+// CHECK:
+//   Mangled name: IFoo
+//   Public signature: /IFoo|null[0]
+interface IFoo {
+  // CHECK:
+  //   Mangled name: IFoo#testExtFun@kotlin.String(){}
+  //   Public signature: /IFoo.testExtFun|-4671785829303171989[0]
+  //   Public signature debug description: testExtFun@kotlin.String(){}
+  @Ann
+  abstract fun String.testExtFun(): Unit
+
+  // CHECK:
+  //   Mangled name: IFoo#testFun(){}
+  //   Public signature: /IFoo.testFun|6322333980269160703[0]
+  //   Public signature debug description: testFun(){}
+  @Ann
+  abstract fun testFun(): Unit
+
+  // CHECK:
+  //   Mangled name: IFoo@kotlin.String{}testExtVal
+  //   Public signature: /IFoo.testExtVal|-6269693357376137188[0]
+  //   Public signature debug description: @kotlin.String{}testExtVal
+  @Ann
+  abstract val String.testExtVal: String
+    // CHECK JVM_IR:
+    //   Mangled name: IFoo#<get-testExtVal>@kotlin.String(){}kotlin.String
+    //   Public signature: /IFoo.testExtVal.<get-testExtVal>|4035393032845602237[0]
+    //   Public signature debug description: <get-testExtVal>@kotlin.String(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: IFoo#<get-testExtVal>@kotlin.String(){}
+    //   Public signature: /IFoo.testExtVal.<get-testExtVal>|8692242155954463066[0]
+    //   Public signature debug description: <get-testExtVal>@kotlin.String(){}
+    abstract get
+
+  // CHECK:
+  //   Mangled name: IFoo{}testVal
+  //   Public signature: /IFoo.testVal|2839078120601828782[0]
+  //   Public signature debug description: {}testVal
+  @Ann
+  abstract val testVal: String
+    // CHECK JVM_IR:
+    //   Mangled name: IFoo#<get-testVal>(){}kotlin.String
+    //   Public signature: /IFoo.testVal.<get-testVal>|-8940261368877498423[0]
+    //   Public signature debug description: <get-testVal>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: IFoo#<get-testVal>(){}
+    //   Public signature: /IFoo.testVal.<get-testVal>|-3119877793352707332[0]
+    //   Public signature debug description: <get-testVal>(){}
+    abstract get
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.fir.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.fir.sig.kt.txt
new file mode 100644
index 00000000000..ac0b290ad58
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.fir.sig.kt.txt
@@ -0,0 +1,252 @@
+// CHECK:
+//   Mangled name: TestAnn
+//   Public signature: /TestAnn|null[0]
+open annotation class TestAnn : Annotation {
+  // CHECK:
+  //   Mangled name: TestAnn{}x
+  //   Public signature: /TestAnn.x|-8060530855978347579[0]
+  //   Public signature debug description: {}x
+  val x: String
+    // CHECK JVM_IR:
+    //   Mangled name: TestAnn#<get-x>(){}kotlin.String
+    //   Public signature: /TestAnn.x.<get-x>|316111172223894646[0]
+    //   Public signature debug description: <get-x>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestAnn#<get-x>(){}
+    //   Public signature: /TestAnn.x.<get-x>|1482705010654679335[0]
+    //   Public signature debug description: <get-x>(){}
+    get
+
+  // CHECK:
+  //   Mangled name: TestAnn#<init>(kotlin.String){}
+  //   Public signature: /TestAnn.<init>|1280618353163213788[0]
+  //   Public signature debug description: <init>(kotlin.String){}
+  constructor(x: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: TestEnum
+//   Public signature: /TestEnum|null[0]
+open enum class TestEnum : Enum<TestEnum> {
+  // CHECK:
+  //   Mangled name: TestEnum#<init>(){}
+  //   Public signature: /TestEnum.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY1
+  //   Public signature: /TestEnum.ENTRY1|null[0]
+  @TestAnn(x = "ENTRY1")
+  ENTRY1
+
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY2
+  //   Public signature: /TestEnum.ENTRY2|null[0]
+
+  @TestAnn(x = "ENTRY2")
+  ENTRY2
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY2
+  //   Public signature: /TestEnum.ENTRY2.<EEC>|null[0]
+  private enum entry class ENTRY2 : TestEnum {
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}x
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.x|-8060530855978347579[0]
+    //   Public signature debug description: {}x
+    val x: Int
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-x>(){}kotlin.Int
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.x.<get-x>|4966956098150895696[0]
+      //   Public signature debug description: <get-x>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-x>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.x.<get-x>|1482705010654679335[0]
+      //   Public signature debug description: <get-x>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2#<init>(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.<init>|-5645683436151566731[0]
+    //   Public signature debug description: <init>(){}
+    private constructor() /* primary */
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#compareTo(TestEnum){}kotlin.Int
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.compareTo|7559751212169934687[0]
+    //   Public signature debug description: compareTo(TestEnum){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#compareTo(TestEnum){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.compareTo|7350720606720122863[0]
+    //   Public signature debug description: compareTo(TestEnum){}
+    /* fake */ override operator fun compareTo(other: TestEnum): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#equals(kotlin.Any?){}kotlin.Boolean
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.equals|722809408929142791[0]
+    //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#equals(kotlin.Any?){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.equals|4638265728071529943[0]
+    //   Public signature debug description: equals(kotlin.Any?){}
+    /* fake */ override operator fun equals(other: Any?): Boolean
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#hashCode(){}kotlin.Int
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.hashCode|-8048879360829830756[0]
+    //   Public signature debug description: hashCode(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#hashCode(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.hashCode|3409210261493131192[0]
+    //   Public signature debug description: hashCode(){}
+    /* fake */ override fun hashCode(): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#toString(){}kotlin.String
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.toString|6958853723545266802[0]
+    //   Public signature debug description: toString(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#toString(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.toString|-1522858123163872138[0]
+    //   Public signature debug description: toString(){}
+    /* fake */ override fun toString(): String
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}name
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.name|4231860309499509769[0]
+    //   Public signature debug description: {}name
+    /* fake */ override val name: String
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-name>(){}kotlin.String
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.name.<get-name>|-8006111524522882650[0]
+      //   Public signature debug description: <get-name>(){}kotlin.String
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-name>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.name.<get-name>|5879344792307730109[0]
+      //   Public signature debug description: <get-name>(){}
+      /* fake */ override get(): String
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}ordinal
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal|1912745122988592376[0]
+    //   Public signature debug description: {}ordinal
+    /* fake */ override val ordinal: Int
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-ordinal>(){}kotlin.Int
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal.<get-ordinal>|-6902664390061762634[0]
+      //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-ordinal>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal.<get-ordinal>|8409904226035914023[0]
+      //   Public signature debug description: <get-ordinal>(){}
+      /* fake */ override get(): Int
+
+  }
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#valueOf#static(kotlin.String){}TestEnum
+  //   Public signature: /TestEnum.valueOf|1811575739170804829[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}TestEnum
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#valueOf#static(kotlin.String){}
+  //   Public signature: /TestEnum.valueOf|-4683474617854611729[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}
+  fun valueOf(value: String): TestEnum
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#values#static(){}kotlin.Array<TestEnum>
+  //   Public signature: /TestEnum.values|-4299804782350326897[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<TestEnum>
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#values#static(){}
+  //   Public signature: /TestEnum.values|-8715569000920726747[0]
+  //   Public signature debug description: values#static(){}
+  fun values(): Array<TestEnum>
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#compareTo(TestEnum){}kotlin.Int
+  //   Public signature: /TestEnum.compareTo|7559751212169934687[0]
+  //   Public signature debug description: compareTo(TestEnum){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#compareTo(TestEnum){}
+  //   Public signature: /TestEnum.compareTo|7350720606720122863[0]
+  //   Public signature debug description: compareTo(TestEnum){}
+  /* fake */ override operator fun compareTo(other: TestEnum): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /TestEnum.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#equals(kotlin.Any?){}
+  //   Public signature: /TestEnum.equals|4638265728071529943[0]
+  //   Public signature debug description: equals(kotlin.Any?){}
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#hashCode(){}kotlin.Int
+  //   Public signature: /TestEnum.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#hashCode(){}
+  //   Public signature: /TestEnum.hashCode|3409210261493131192[0]
+  //   Public signature debug description: hashCode(){}
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#toString(){}kotlin.String
+  //   Public signature: /TestEnum.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#toString(){}
+  //   Public signature: /TestEnum.toString|-1522858123163872138[0]
+  //   Public signature debug description: toString(){}
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: TestEnum#static{}entries
+  //   Public signature: /TestEnum.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<TestEnum>
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-entries>#static(){}kotlin.enums.EnumEntries<TestEnum>
+    //   Public signature: /TestEnum.entries.<get-entries>|6962221716588245012[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<TestEnum>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-entries>#static(){}
+    //   Public signature: /TestEnum.entries.<get-entries>|-6068527377476727729[0]
+    //   Public signature debug description: <get-entries>#static(){}
+    get(): EnumEntries<TestEnum>
+
+  // CHECK:
+  //   Mangled name: TestEnum{}name
+  //   Public signature: /TestEnum.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-name>(){}kotlin.String
+    //   Public signature: /TestEnum.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-name>(){}
+    //   Public signature: /TestEnum.name.<get-name>|5879344792307730109[0]
+    //   Public signature debug description: <get-name>(){}
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: TestEnum{}ordinal
+  //   Public signature: /TestEnum.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /TestEnum.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-ordinal>(){}
+    //   Public signature: /TestEnum.ordinal.<get-ordinal>|8409904226035914023[0]
+    //   Public signature debug description: <get-ordinal>(){}
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.kt b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.kt
index b07b7843724..a6ab9e26dc2 100644
--- a/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.kt
@@ -1,4 +1,4 @@
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Difference in annotations generated by K1 and K2
 
 annotation class TestAnn(val x: String)
diff --git a/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.sig.kt.txt
new file mode 100644
index 00000000000..df2a7e458d1
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.sig.kt.txt
@@ -0,0 +1,253 @@
+// CHECK:
+//   Mangled name: TestAnn
+//   Public signature: /TestAnn|null[0]
+open annotation class TestAnn : Annotation {
+  // CHECK:
+  //   Mangled name: TestAnn{}x
+  //   Public signature: /TestAnn.x|-8060530855978347579[0]
+  //   Public signature debug description: {}x
+  val x: String
+    // CHECK JVM_IR:
+    //   Mangled name: TestAnn#<get-x>(){}kotlin.String
+    //   Public signature: /TestAnn.x.<get-x>|316111172223894646[0]
+    //   Public signature debug description: <get-x>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestAnn#<get-x>(){}
+    //   Public signature: /TestAnn.x.<get-x>|1482705010654679335[0]
+    //   Public signature debug description: <get-x>(){}
+    get
+
+  // CHECK:
+  //   Mangled name: TestAnn#<init>(kotlin.String){}
+  //   Public signature: /TestAnn.<init>|1280618353163213788[0]
+  //   Public signature debug description: <init>(kotlin.String){}
+  constructor(x: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: TestEnum
+//   Public signature: /TestEnum|null[0]
+open enum class TestEnum : Enum<TestEnum> {
+  // CHECK:
+  //   Mangled name: TestEnum#<init>(){}
+  //   Public signature: /TestEnum.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY1
+  //   Public signature: /TestEnum.ENTRY1|null[0]
+  @TestAnn(x = "ENTRY1")
+  ENTRY1
+
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY2
+  //   Public signature: /TestEnum.ENTRY2|null[0]
+
+  @TestAnn(x = "ENTRY2")
+  ENTRY2
+  // CHECK:
+  //   Mangled name: TestEnum.ENTRY2
+  //   Public signature: /TestEnum.ENTRY2.<EEC>|null[0]
+  @TestAnn(x = "ENTRY2")
+  private enum entry class ENTRY2 : TestEnum {
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}x
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.x|-8060530855978347579[0]
+    //   Public signature debug description: {}x
+    val x: Int
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-x>(){}kotlin.Int
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.x.<get-x>|4966956098150895696[0]
+      //   Public signature debug description: <get-x>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-x>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.x.<get-x>|1482705010654679335[0]
+      //   Public signature debug description: <get-x>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2#<init>(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.<init>|-5645683436151566731[0]
+    //   Public signature debug description: <init>(){}
+    private constructor() /* primary */
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#compareTo(TestEnum){}kotlin.Int
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.compareTo|7559751212169934687[0]
+    //   Public signature debug description: compareTo(TestEnum){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#compareTo(TestEnum){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.compareTo|7350720606720122863[0]
+    //   Public signature debug description: compareTo(TestEnum){}
+    /* fake */ override operator fun compareTo(other: TestEnum): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#equals(kotlin.Any?){}kotlin.Boolean
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.equals|722809408929142791[0]
+    //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#equals(kotlin.Any?){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.equals|4638265728071529943[0]
+    //   Public signature debug description: equals(kotlin.Any?){}
+    /* fake */ override operator fun equals(other: Any?): Boolean
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#hashCode(){}kotlin.Int
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.hashCode|-8048879360829830756[0]
+    //   Public signature debug description: hashCode(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#hashCode(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.hashCode|3409210261493131192[0]
+    //   Public signature debug description: hashCode(){}
+    /* fake */ override fun hashCode(): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum.ENTRY2#toString(){}kotlin.String
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.toString|6958853723545266802[0]
+    //   Public signature debug description: toString(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum.ENTRY2#toString(){}
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.toString|-1522858123163872138[0]
+    //   Public signature debug description: toString(){}
+    /* fake */ override fun toString(): String
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}name
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.name|4231860309499509769[0]
+    //   Public signature debug description: {}name
+    /* fake */ override val name: String
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-name>(){}kotlin.String
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.name.<get-name>|-8006111524522882650[0]
+      //   Public signature debug description: <get-name>(){}kotlin.String
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-name>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.name.<get-name>|5879344792307730109[0]
+      //   Public signature debug description: <get-name>(){}
+      /* fake */ override get(): String
+
+    // CHECK:
+    //   Mangled name: TestEnum.ENTRY2{}ordinal
+    //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal|1912745122988592376[0]
+    //   Public signature debug description: {}ordinal
+    /* fake */ override val ordinal: Int
+      // CHECK JVM_IR:
+      //   Mangled name: TestEnum.ENTRY2#<get-ordinal>(){}kotlin.Int
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal.<get-ordinal>|-6902664390061762634[0]
+      //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: TestEnum.ENTRY2#<get-ordinal>(){}
+      //   Public signature: /TestEnum.ENTRY2.<EEC>.ordinal.<get-ordinal>|8409904226035914023[0]
+      //   Public signature debug description: <get-ordinal>(){}
+      /* fake */ override get(): Int
+
+  }
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#valueOf#static(kotlin.String){}TestEnum
+  //   Public signature: /TestEnum.valueOf|1811575739170804829[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}TestEnum
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#valueOf#static(kotlin.String){}
+  //   Public signature: /TestEnum.valueOf|-4683474617854611729[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}
+  fun valueOf(value: String): TestEnum
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#values#static(){}kotlin.Array<TestEnum>
+  //   Public signature: /TestEnum.values|-4299804782350326897[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<TestEnum>
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#values#static(){}
+  //   Public signature: /TestEnum.values|-8715569000920726747[0]
+  //   Public signature debug description: values#static(){}
+  fun values(): Array<TestEnum>
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#compareTo(TestEnum){}kotlin.Int
+  //   Public signature: /TestEnum.compareTo|7559751212169934687[0]
+  //   Public signature debug description: compareTo(TestEnum){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#compareTo(TestEnum){}
+  //   Public signature: /TestEnum.compareTo|7350720606720122863[0]
+  //   Public signature debug description: compareTo(TestEnum){}
+  /* fake */ override operator fun compareTo(other: TestEnum): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /TestEnum.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#equals(kotlin.Any?){}
+  //   Public signature: /TestEnum.equals|4638265728071529943[0]
+  //   Public signature debug description: equals(kotlin.Any?){}
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#hashCode(){}kotlin.Int
+  //   Public signature: /TestEnum.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#hashCode(){}
+  //   Public signature: /TestEnum.hashCode|3409210261493131192[0]
+  //   Public signature debug description: hashCode(){}
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: TestEnum#toString(){}kotlin.String
+  //   Public signature: /TestEnum.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: TestEnum#toString(){}
+  //   Public signature: /TestEnum.toString|-1522858123163872138[0]
+  //   Public signature debug description: toString(){}
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: TestEnum#static{}entries
+  //   Public signature: /TestEnum.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<TestEnum>
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-entries>#static(){}kotlin.enums.EnumEntries<TestEnum>
+    //   Public signature: /TestEnum.entries.<get-entries>|6962221716588245012[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<TestEnum>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-entries>#static(){}
+    //   Public signature: /TestEnum.entries.<get-entries>|-6068527377476727729[0]
+    //   Public signature debug description: <get-entries>#static(){}
+    get(): EnumEntries<TestEnum>
+
+  // CHECK:
+  //   Mangled name: TestEnum{}name
+  //   Public signature: /TestEnum.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-name>(){}kotlin.String
+    //   Public signature: /TestEnum.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-name>(){}
+    //   Public signature: /TestEnum.name.<get-name>|5879344792307730109[0]
+    //   Public signature debug description: <get-name>(){}
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: TestEnum{}ordinal
+  //   Public signature: /TestEnum.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: TestEnum#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /TestEnum.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: TestEnum#<get-ordinal>(){}
+    //   Public signature: /TestEnum.ordinal.<get-ordinal>|8409904226035914023[0]
+    //   Public signature debug description: <get-ordinal>(){}
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.fir.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.fir.sig.kt.txt
new file mode 100644
index 00000000000..b8fb736690b
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.fir.sig.kt.txt
@@ -0,0 +1,246 @@
+// CHECK:
+//   Mangled name: Anno
+//   Public signature: /Anno|null[0]
+open annotation class Anno : Annotation {
+  // CHECK:
+  //   Mangled name: Anno{}token
+  //   Public signature: /Anno.token|-1474644848610526691[0]
+  //   Public signature debug description: {}token
+  val token: String
+    // CHECK JVM_IR:
+    //   Mangled name: Anno#<get-token>(){}kotlin.String
+    //   Public signature: /Anno.token.<get-token>|-7990759666918264390[0]
+    //   Public signature debug description: <get-token>(){}kotlin.String
+    get
+
+  // CHECK:
+  //   Mangled name: Anno#<init>(kotlin.String){}
+  //   Public signature: /Anno.<init>|1280618353163213788[0]
+  //   Public signature debug description: <init>(kotlin.String){}
+  constructor(token: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Annos
+//   Public signature: /Annos|null[0]
+open annotation class Annos : Annotation {
+  // CHECK:
+  //   Mangled name: Annos{}value
+  //   Public signature: /Annos.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<Anno>
+    // CHECK JVM_IR:
+    //   Mangled name: Annos#<get-value>(){}kotlin.Array<Anno>
+    //   Public signature: /Annos.value.<get-value>|-4069060984573284016[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<Anno>
+    get
+
+  // CHECK:
+  //   Mangled name: Annos#<init>(kotlin.Array<Anno>){}
+  //   Public signature: /Annos.<init>|1175794361085023797[0]
+  //   Public signature debug description: <init>(kotlin.Array<Anno>){}
+  constructor(value: Array<Anno>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Classes
+//   Public signature: /Classes|null[0]
+open annotation class Classes : Annotation {
+  // CHECK:
+  //   Mangled name: Classes{}value
+  //   Public signature: /Classes.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<KClass<*>>
+    // CHECK JVM_IR:
+    //   Mangled name: Classes#<get-value>(){}kotlin.Array<kotlin.reflect.KClass<*>>
+    //   Public signature: /Classes.value.<get-value>|7741303810693223775[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<kotlin.reflect.KClass<*>>
+    get
+
+  // CHECK:
+  //   Mangled name: Classes#<init>(kotlin.Array<kotlin.reflect.KClass<*>>){}
+  //   Public signature: /Classes.<init>|-7037593412282832873[0]
+  //   Public signature debug description: <init>(kotlin.Array<kotlin.reflect.KClass<*>>){}
+  constructor(value: Array<KClass<*>>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Enums
+//   Public signature: /Enums|null[0]
+open annotation class Enums : Annotation {
+  // CHECK:
+  //   Mangled name: Enums{}value
+  //   Public signature: /Enums.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<E>
+    // CHECK JVM_IR:
+    //   Mangled name: Enums#<get-value>(){}kotlin.Array<E>
+    //   Public signature: /Enums.value.<get-value>|6387785805560718811[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<E>
+    get
+
+  // CHECK:
+  //   Mangled name: Enums#<init>(kotlin.Array<E>){}
+  //   Public signature: /Enums.<init>|-3621344537085490519[0]
+  //   Public signature debug description: <init>(kotlin.Array<E>){}
+  constructor(value: Array<E>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Ints
+//   Public signature: /Ints|null[0]
+open annotation class Ints : Annotation {
+  // CHECK:
+  //   Mangled name: Ints{}value
+  //   Public signature: /Ints.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: IntArray
+    // CHECK JVM_IR:
+    //   Mangled name: Ints#<get-value>(){}kotlin.IntArray
+    //   Public signature: /Ints.value.<get-value>|-5427747971978269276[0]
+    //   Public signature debug description: <get-value>(){}kotlin.IntArray
+    get
+
+  // CHECK:
+  //   Mangled name: Ints#<init>(kotlin.IntArray){}
+  //   Public signature: /Ints.<init>|6811679238332965682[0]
+  //   Public signature debug description: <init>(kotlin.IntArray){}
+  constructor(value: IntArray) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Strings
+//   Public signature: /Strings|null[0]
+open annotation class Strings : Annotation {
+  // CHECK:
+  //   Mangled name: Strings{}value
+  //   Public signature: /Strings.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<String>
+    // CHECK JVM_IR:
+    //   Mangled name: Strings#<get-value>(){}kotlin.Array<kotlin.String>
+    //   Public signature: /Strings.value.<get-value>|-7769950459445256373[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<kotlin.String>
+    get
+
+  // CHECK:
+  //   Mangled name: Strings#<init>(kotlin.Array<kotlin.String>){}
+  //   Public signature: /Strings.<init>|5393043463829665764[0]
+  //   Public signature debug description: <init>(kotlin.Array<kotlin.String>){}
+  constructor(value: Array<String>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C : A {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: C#test(){}
+  //   Public signature: /C.test|6620506149988718649[0]
+  //   Public signature debug description: test(){}
+  @Annos(value = Anno(token = "OK"))
+  @Strings(value = "OK")
+  @Ints(value = 42)
+  @Enums(value = E.EA)
+  @Classes(value = Double::class)
+  /* fake */ override fun test(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: E
+//   Public signature: /E|null[0]
+enum class E : Enum<E> {
+  // CHECK:
+  //   Mangled name: E#<init>(){}
+  //   Public signature: /E.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: E.EA
+  //   Public signature: /E.EA|null[0]
+  EA
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#valueOf#static(kotlin.String){}E
+  //   Public signature: /E.valueOf|-1984843552149141556[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}E
+  fun valueOf(value: String): E
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#values#static(){}kotlin.Array<E>
+  //   Public signature: /E.values|4921695905454219855[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<E>
+  fun values(): Array<E>
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#compareTo(E){}kotlin.Int
+  //   Public signature: /E.compareTo|7895449182838894647[0]
+  //   Public signature debug description: compareTo(E){}kotlin.Int
+  /* fake */ override operator fun compareTo(other: E): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /E.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#hashCode(){}kotlin.Int
+  //   Public signature: /E.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#toString(){}kotlin.String
+  //   Public signature: /E.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: E#static{}entries
+  //   Public signature: /E.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<E>
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-entries>#static(){}kotlin.enums.EnumEntries<E>
+    //   Public signature: /E.entries.<get-entries>|2481970109947815388[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<E>
+    get(): EnumEntries<E>
+
+  // CHECK:
+  //   Mangled name: E{}name
+  //   Public signature: /E.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-name>(){}kotlin.String
+    //   Public signature: /E.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: E{}ordinal
+  //   Public signature: /E.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /E.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.kt b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.kt
index 52e94500ac8..d17dd43ddcc 100644
--- a/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.kt
@@ -1,7 +1,7 @@
 // SKIP_KT_DUMP
 // TARGET_BACKEND: JVM
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Different types in annotations generated by K1 and K2
 
 // FILE: A.java
diff --git a/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.sig.kt.txt
new file mode 100644
index 00000000000..f98e27fdfed
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/javaAnnotationWithSingleArrayArgument.sig.kt.txt
@@ -0,0 +1,246 @@
+// CHECK:
+//   Mangled name: Anno
+//   Public signature: /Anno|null[0]
+open annotation class Anno : Annotation {
+  // CHECK:
+  //   Mangled name: Anno{}token
+  //   Public signature: /Anno.token|-1474644848610526691[0]
+  //   Public signature debug description: {}token
+  val token: String
+    // CHECK JVM_IR:
+    //   Mangled name: Anno#<get-token>(){}kotlin.String
+    //   Public signature: /Anno.token.<get-token>|-7990759666918264390[0]
+    //   Public signature debug description: <get-token>(){}kotlin.String
+    get
+
+  // CHECK:
+  //   Mangled name: Anno#<init>(kotlin.String){}
+  //   Public signature: /Anno.<init>|1280618353163213788[0]
+  //   Public signature debug description: <init>(kotlin.String){}
+  constructor(token: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Annos
+//   Public signature: /Annos|null[0]
+open annotation class Annos : Annotation {
+  // CHECK:
+  //   Mangled name: Annos{}value
+  //   Public signature: /Annos.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<Anno>
+    // CHECK JVM_IR:
+    //   Mangled name: Annos#<get-value>(){}kotlin.Array<Anno>
+    //   Public signature: /Annos.value.<get-value>|-4069060984573284016[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<Anno>
+    get
+
+  // CHECK:
+  //   Mangled name: Annos#<init>(kotlin.Array<Anno>){}
+  //   Public signature: /Annos.<init>|1175794361085023797[0]
+  //   Public signature debug description: <init>(kotlin.Array<Anno>){}
+  constructor(value: Array<Anno>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Classes
+//   Public signature: /Classes|null[0]
+open annotation class Classes : Annotation {
+  // CHECK:
+  //   Mangled name: Classes{}value
+  //   Public signature: /Classes.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<KClass<*>>
+    // CHECK JVM_IR:
+    //   Mangled name: Classes#<get-value>(){}kotlin.Array<kotlin.reflect.KClass<*>>
+    //   Public signature: /Classes.value.<get-value>|7741303810693223775[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<kotlin.reflect.KClass<*>>
+    get
+
+  // CHECK:
+  //   Mangled name: Classes#<init>(kotlin.Array<kotlin.reflect.KClass<*>>){}
+  //   Public signature: /Classes.<init>|-7037593412282832873[0]
+  //   Public signature debug description: <init>(kotlin.Array<kotlin.reflect.KClass<*>>){}
+  constructor(value: Array<KClass<*>>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Enums
+//   Public signature: /Enums|null[0]
+open annotation class Enums : Annotation {
+  // CHECK:
+  //   Mangled name: Enums{}value
+  //   Public signature: /Enums.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<E>
+    // CHECK JVM_IR:
+    //   Mangled name: Enums#<get-value>(){}kotlin.Array<E>
+    //   Public signature: /Enums.value.<get-value>|6387785805560718811[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<E>
+    get
+
+  // CHECK:
+  //   Mangled name: Enums#<init>(kotlin.Array<E>){}
+  //   Public signature: /Enums.<init>|-3621344537085490519[0]
+  //   Public signature debug description: <init>(kotlin.Array<E>){}
+  constructor(value: Array<E>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Ints
+//   Public signature: /Ints|null[0]
+open annotation class Ints : Annotation {
+  // CHECK:
+  //   Mangled name: Ints{}value
+  //   Public signature: /Ints.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: IntArray
+    // CHECK JVM_IR:
+    //   Mangled name: Ints#<get-value>(){}kotlin.IntArray
+    //   Public signature: /Ints.value.<get-value>|-5427747971978269276[0]
+    //   Public signature debug description: <get-value>(){}kotlin.IntArray
+    get
+
+  // CHECK:
+  //   Mangled name: Ints#<init>(kotlin.IntArray){}
+  //   Public signature: /Ints.<init>|6811679238332965682[0]
+  //   Public signature debug description: <init>(kotlin.IntArray){}
+  constructor(value: IntArray) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: Strings
+//   Public signature: /Strings|null[0]
+open annotation class Strings : Annotation {
+  // CHECK:
+  //   Mangled name: Strings{}value
+  //   Public signature: /Strings.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: Array<String>
+    // CHECK JVM_IR:
+    //   Mangled name: Strings#<get-value>(){}kotlin.Array<kotlin.String>
+    //   Public signature: /Strings.value.<get-value>|-7769950459445256373[0]
+    //   Public signature debug description: <get-value>(){}kotlin.Array<kotlin.String>
+    get
+
+  // CHECK:
+  //   Mangled name: Strings#<init>(kotlin.Array<kotlin.String>){}
+  //   Public signature: /Strings.<init>|5393043463829665764[0]
+  //   Public signature debug description: <init>(kotlin.Array<kotlin.String>){}
+  constructor(value: Array<String>) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C : A {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: C#test(){}
+  //   Public signature: /C.test|6620506149988718649[0]
+  //   Public signature debug description: test(){}
+  @Annos(value = [Anno(token = "OK")])
+  @Strings(value = ["OK"])
+  @Ints(value = [42])
+  @Enums(value = [E.EA])
+  @Classes(value = [Double::class])
+  /* fake */ override fun test(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: E
+//   Public signature: /E|null[0]
+enum class E : Enum<E> {
+  // CHECK:
+  //   Mangled name: E#<init>(){}
+  //   Public signature: /E.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: E.EA
+  //   Public signature: /E.EA|null[0]
+  EA
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#valueOf#static(kotlin.String){}E
+  //   Public signature: /E.valueOf|-1984843552149141556[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}E
+  fun valueOf(value: String): E
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#values#static(){}kotlin.Array<E>
+  //   Public signature: /E.values|4921695905454219855[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<E>
+  fun values(): Array<E>
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#compareTo(E){}kotlin.Int
+  //   Public signature: /E.compareTo|7895449182838894647[0]
+  //   Public signature debug description: compareTo(E){}kotlin.Int
+  /* fake */ override operator fun compareTo(other: E): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /E.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#hashCode(){}kotlin.Int
+  //   Public signature: /E.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: E#toString(){}kotlin.String
+  //   Public signature: /E.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: E#static{}entries
+  //   Public signature: /E.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<E>
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-entries>#static(){}kotlin.enums.EnumEntries<E>
+    //   Public signature: /E.entries.<get-entries>|2481970109947815388[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<E>
+    get(): EnumEntries<E>
+
+  // CHECK:
+  //   Mangled name: E{}name
+  //   Public signature: /E.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-name>(){}kotlin.String
+    //   Public signature: /E.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: E{}ordinal
+  //   Public signature: /E.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: E#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /E.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.fir.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.fir.sig.kt.txt
new file mode 100644
index 00000000000..7aff2ed7513
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.fir.sig.kt.txt
@@ -0,0 +1,33 @@
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+open annotation class A : Annotation {
+  // CHECK:
+  //   Mangled name: A{}xs
+  //   Public signature: /A.xs|1063330853857063704[0]
+  //   Public signature debug description: {}xs
+  val xs: Array<out String>
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-xs>(){}kotlin.Array<out|kotlin.String>
+    //   Public signature: /A.xs.<get-xs>|9188548163055185324[0]
+    //   Public signature debug description: <get-xs>(){}kotlin.Array<out|kotlin.String>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-xs>(){}
+    //   Public signature: /A.xs.<get-xs>|-6958094100501701183[0]
+    //   Public signature debug description: <get-xs>(){}
+    get
+
+  // CHECK:
+  //   Mangled name: A#<init>(kotlin.Array<out|kotlin.String>...){}
+  //   Public signature: /A.<init>|-6780234697714860085[0]
+  //   Public signature debug description: <init>(kotlin.Array<out|kotlin.String>...){}
+  constructor(vararg xs: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: #test(){}
+//   Public signature: /test|6620506149988718649[0]
+//   Public signature debug description: test(){}
+@A(xs = ["a", "b"])
+fun test(): Unit
diff --git a/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.kt b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.kt
index d23fb010dd7..7ee7447bf9e 100644
--- a/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.kt
+++ b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.kt
@@ -1,5 +1,5 @@
-// SKIP_SIGNATURE_DUMP
-// ^ KT-60136
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
+// ^ KT-60136: Spread operator works incorrectly in K1, but correctly in K2.
 
 annotation class A(vararg val xs: String)
 
diff --git a/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.sig.kt.txt b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.sig.kt.txt
new file mode 100644
index 00000000000..37a3b00368b
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/annotations/spreadOperatorInAnnotationArguments.sig.kt.txt
@@ -0,0 +1,33 @@
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+open annotation class A : Annotation {
+  // CHECK:
+  //   Mangled name: A{}xs
+  //   Public signature: /A.xs|1063330853857063704[0]
+  //   Public signature debug description: {}xs
+  val xs: Array<out String>
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-xs>(){}kotlin.Array<out|kotlin.String>
+    //   Public signature: /A.xs.<get-xs>|9188548163055185324[0]
+    //   Public signature debug description: <get-xs>(){}kotlin.Array<out|kotlin.String>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-xs>(){}
+    //   Public signature: /A.xs.<get-xs>|-6958094100501701183[0]
+    //   Public signature debug description: <get-xs>(){}
+    get
+
+  // CHECK:
+  //   Mangled name: A#<init>(kotlin.Array<out|kotlin.String>...){}
+  //   Public signature: /A.<init>|-6780234697714860085[0]
+  //   Public signature debug description: <init>(kotlin.Array<out|kotlin.String>...){}
+  constructor(vararg xs: String) /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: #test(){}
+//   Public signature: /test|6620506149988718649[0]
+//   Public signature debug description: test(){}
+@A(xs = [["a"], ["b"]])
+fun test(): Unit
diff --git a/compiler/testData/ir/irText/declarations/typeAlias.fir.sig.kt.txt b/compiler/testData/ir/irText/declarations/typeAlias.fir.sig.kt.txt
new file mode 100644
index 00000000000..7297d646783
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/typeAlias.fir.sig.kt.txt
@@ -0,0 +1,22 @@
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: #foo(){}
+//   Public signature: /foo|-1041209573719867811[0]
+//   Public signature debug description: foo(){}
+fun foo(): Unit
+
+// CHECK:
+//   Mangled name: Test1
+//   Public signature: /Test1|null[0]
+typealias Test1 = String
diff --git a/compiler/testData/ir/irText/declarations/typeAlias.kt b/compiler/testData/ir/irText/declarations/typeAlias.kt
index 6916c462749..c691da950b9 100644
--- a/compiler/testData/ir/irText/declarations/typeAlias.kt
+++ b/compiler/testData/ir/irText/declarations/typeAlias.kt
@@ -1,4 +1,4 @@
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ KT-45285
 
 typealias Test1 = String
diff --git a/compiler/testData/ir/irText/declarations/typeAlias.sig.kt.txt b/compiler/testData/ir/irText/declarations/typeAlias.sig.kt.txt
new file mode 100644
index 00000000000..32cef4a2769
--- /dev/null
+++ b/compiler/testData/ir/irText/declarations/typeAlias.sig.kt.txt
@@ -0,0 +1,26 @@
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: C.TestNested
+  //   Public signature: /C.TestNested|null[0]
+  typealias TestNested = String
+}
+
+// CHECK:
+//   Mangled name: #foo(){}
+//   Public signature: /foo|-1041209573719867811[0]
+//   Public signature debug description: foo(){}
+fun foo(): Unit
+
+// CHECK:
+//   Mangled name: Test1
+//   Public signature: /Test1|null[0]
+typealias Test1 = String
diff --git a/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.fir.sig.kt.txt b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.fir.sig.kt.txt
new file mode 100644
index 00000000000..35381669c5a
--- /dev/null
+++ b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.fir.sig.kt.txt
@@ -0,0 +1,266 @@
+// CHECK:
+//   Mangled name: MyEnum
+//   Public signature: /MyEnum|null[0]
+open enum class MyEnum : Enum<MyEnum> {
+  // CHECK:
+  //   Mangled name: MyEnum#<init>(){}
+  //   Public signature: /MyEnum.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: MyEnum.Z
+  //   Public signature: /MyEnum.Z|null[0]
+
+  Z
+  // CHECK:
+  //   Mangled name: MyEnum.Z
+  //   Public signature: /MyEnum.Z.<EEC>|null[0]
+  private enum entry class Z : MyEnum {
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}counter
+    //   Public signature: /MyEnum.Z.<EEC>.counter|3849500605769271673[0]
+    //   Public signature debug description: {}counter
+    var counter: Int
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-counter>(){}kotlin.Int
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<get-counter>|6416265643848993228[0]
+      //   Public signature debug description: <get-counter>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-counter>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<get-counter>|6903507550118978958[0]
+      //   Public signature debug description: <get-counter>(){}
+      get
+      // CHECK:
+      //   Mangled name: MyEnum.Z#<set-counter>(kotlin.Int){}
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<set-counter>|-8124462411591632783[0]
+      //   Public signature debug description: <set-counter>(kotlin.Int){}
+      set
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}aLambda
+    //   Public signature: /MyEnum.Z.<EEC>.aLambda|3337321219156655813[0]
+    //   Public signature debug description: {}aLambda
+    val aLambda: Function0<Unit>
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-aLambda>(){}kotlin.Function0<kotlin.Unit>
+      //   Public signature: /MyEnum.Z.<EEC>.aLambda.<get-aLambda>|9058518221524596568[0]
+      //   Public signature debug description: <get-aLambda>(){}kotlin.Function0<kotlin.Unit>
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-aLambda>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.aLambda.<get-aLambda>|8927671768328125269[0]
+      //   Public signature debug description: <get-aLambda>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}anObject
+    //   Public signature: /MyEnum.Z.<EEC>.anObject|409091113626572731[0]
+    //   Public signature debug description: {}anObject
+    val anObject: <no name provided>
+      // CHECK JVM_IR:
+      //   Mangled name (compatible mode: false): MyEnum.Z#<get-anObject>(){}MyEnum.Z{}anObject.<no name provided>
+      //   Mangled name (compatible mode: true):  MyEnum.Z#<get-anObject>(){}MyEnum.Z.anObject.<no name provided>
+      //   Public signature: /MyEnum.Z.<EEC>.anObject.<get-anObject>|1111532556475596471[0]
+      //   Public signature debug description: <get-anObject>(){}MyEnum.Z{}anObject.<no name provided>
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-anObject>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.anObject.<get-anObject>|6468357437342963609[0]
+      //   Public signature debug description: <get-anObject>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#<init>(){}
+    //   Public signature: /MyEnum.Z.<EEC>.<init>|-5645683436151566731[0]
+    //   Public signature debug description: <init>(){}
+    private constructor() /* primary */
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#compareTo(MyEnum){}kotlin.Int
+    //   Public signature: /MyEnum.Z.<EEC>.compareTo|2015858924903177055[0]
+    //   Public signature debug description: compareTo(MyEnum){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#compareTo(MyEnum){}
+    //   Public signature: /MyEnum.Z.<EEC>.compareTo|-1404018836780573573[0]
+    //   Public signature debug description: compareTo(MyEnum){}
+    /* fake */ override operator fun compareTo(other: MyEnum): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#equals(kotlin.Any?){}kotlin.Boolean
+    //   Public signature: /MyEnum.Z.<EEC>.equals|722809408929142791[0]
+    //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#equals(kotlin.Any?){}
+    //   Public signature: /MyEnum.Z.<EEC>.equals|4638265728071529943[0]
+    //   Public signature debug description: equals(kotlin.Any?){}
+    /* fake */ override operator fun equals(other: Any?): Boolean
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#hashCode(){}kotlin.Int
+    //   Public signature: /MyEnum.Z.<EEC>.hashCode|-8048879360829830756[0]
+    //   Public signature debug description: hashCode(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#hashCode(){}
+    //   Public signature: /MyEnum.Z.<EEC>.hashCode|3409210261493131192[0]
+    //   Public signature debug description: hashCode(){}
+    /* fake */ override fun hashCode(): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#toString(){}kotlin.String
+    //   Public signature: /MyEnum.Z.<EEC>.toString|6958853723545266802[0]
+    //   Public signature debug description: toString(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#toString(){}
+    //   Public signature: /MyEnum.Z.<EEC>.toString|-1522858123163872138[0]
+    //   Public signature debug description: toString(){}
+    /* fake */ override fun toString(): String
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#bar(){}
+    //   Public signature: /MyEnum.Z.<EEC>.bar|496682602797471549[0]
+    //   Public signature debug description: bar(){}
+    fun bar(): Unit
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#foo(){}
+    //   Public signature: /MyEnum.Z.<EEC>.foo|-1041209573719867811[0]
+    //   Public signature debug description: foo(){}
+    fun foo(): Unit
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}name
+    //   Public signature: /MyEnum.Z.<EEC>.name|4231860309499509769[0]
+    //   Public signature debug description: {}name
+    /* fake */ override val name: String
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-name>(){}kotlin.String
+      //   Public signature: /MyEnum.Z.<EEC>.name.<get-name>|-8006111524522882650[0]
+      //   Public signature debug description: <get-name>(){}kotlin.String
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-name>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.name.<get-name>|5879344792307730109[0]
+      //   Public signature debug description: <get-name>(){}
+      /* fake */ override get(): String
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}ordinal
+    //   Public signature: /MyEnum.Z.<EEC>.ordinal|1912745122988592376[0]
+    //   Public signature debug description: {}ordinal
+    /* fake */ override val ordinal: Int
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-ordinal>(){}kotlin.Int
+      //   Public signature: /MyEnum.Z.<EEC>.ordinal.<get-ordinal>|-6902664390061762634[0]
+      //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-ordinal>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.ordinal.<get-ordinal>|8409904226035914023[0]
+      //   Public signature debug description: <get-ordinal>(){}
+      /* fake */ override get(): Int
+
+  }
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#valueOf#static(kotlin.String){}MyEnum
+  //   Public signature: /MyEnum.valueOf|4316550590519800984[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}MyEnum
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#valueOf#static(kotlin.String){}
+  //   Public signature: /MyEnum.valueOf|-4683474617854611729[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}
+  fun valueOf(value: String): MyEnum
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#values#static(){}kotlin.Array<MyEnum>
+  //   Public signature: /MyEnum.values|3097625172661156808[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<MyEnum>
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#values#static(){}
+  //   Public signature: /MyEnum.values|-8715569000920726747[0]
+  //   Public signature debug description: values#static(){}
+  fun values(): Array<MyEnum>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#compareTo(MyEnum){}kotlin.Int
+  //   Public signature: /MyEnum.compareTo|2015858924903177055[0]
+  //   Public signature debug description: compareTo(MyEnum){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#compareTo(MyEnum){}
+  //   Public signature: /MyEnum.compareTo|-1404018836780573573[0]
+  //   Public signature debug description: compareTo(MyEnum){}
+  /* fake */ override operator fun compareTo(other: MyEnum): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /MyEnum.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#equals(kotlin.Any?){}
+  //   Public signature: /MyEnum.equals|4638265728071529943[0]
+  //   Public signature debug description: equals(kotlin.Any?){}
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#hashCode(){}kotlin.Int
+  //   Public signature: /MyEnum.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#hashCode(){}
+  //   Public signature: /MyEnum.hashCode|3409210261493131192[0]
+  //   Public signature debug description: hashCode(){}
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#toString(){}kotlin.String
+  //   Public signature: /MyEnum.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#toString(){}
+  //   Public signature: /MyEnum.toString|-1522858123163872138[0]
+  //   Public signature debug description: toString(){}
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: MyEnum#static{}entries
+  //   Public signature: /MyEnum.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<MyEnum>
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-entries>#static(){}kotlin.enums.EnumEntries<MyEnum>
+    //   Public signature: /MyEnum.entries.<get-entries>|-3922959509726908718[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<MyEnum>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-entries>#static(){}
+    //   Public signature: /MyEnum.entries.<get-entries>|-6068527377476727729[0]
+    //   Public signature debug description: <get-entries>#static(){}
+    get(): EnumEntries<MyEnum>
+
+  // CHECK:
+  //   Mangled name: MyEnum{}name
+  //   Public signature: /MyEnum.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-name>(){}kotlin.String
+    //   Public signature: /MyEnum.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-name>(){}
+    //   Public signature: /MyEnum.name.<get-name>|5879344792307730109[0]
+    //   Public signature debug description: <get-name>(){}
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: MyEnum{}ordinal
+  //   Public signature: /MyEnum.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /MyEnum.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-ordinal>(){}
+    //   Public signature: /MyEnum.ordinal.<get-ordinal>|8409904226035914023[0]
+    //   Public signature debug description: <get-ordinal>(){}
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.kt b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.kt
index 871878585a5..6b45f2cd530 100644
--- a/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.kt
+++ b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.kt
@@ -1,4 +1,4 @@
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Types of properties of anonymous classes generated by K1 and K2 are different
 
 enum class MyEnum {
diff --git a/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.sig.kt.txt b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.sig.kt.txt
new file mode 100644
index 00000000000..0834b51a58b
--- /dev/null
+++ b/compiler/testData/ir/irText/expressions/enumEntryReferenceFromEnumEntryClass.sig.kt.txt
@@ -0,0 +1,265 @@
+// CHECK:
+//   Mangled name: MyEnum
+//   Public signature: /MyEnum|null[0]
+open enum class MyEnum : Enum<MyEnum> {
+  // CHECK:
+  //   Mangled name: MyEnum#<init>(){}
+  //   Public signature: /MyEnum.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  private constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: MyEnum.Z
+  //   Public signature: /MyEnum.Z|null[0]
+
+  Z
+  // CHECK:
+  //   Mangled name: MyEnum.Z
+  //   Public signature: /MyEnum.Z.<EEC>|null[0]
+  private enum entry class Z : MyEnum {
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}counter
+    //   Public signature: /MyEnum.Z.<EEC>.counter|3849500605769271673[0]
+    //   Public signature debug description: {}counter
+    var counter: Int
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-counter>(){}kotlin.Int
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<get-counter>|6416265643848993228[0]
+      //   Public signature debug description: <get-counter>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-counter>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<get-counter>|6903507550118978958[0]
+      //   Public signature debug description: <get-counter>(){}
+      get
+      // CHECK:
+      //   Mangled name: MyEnum.Z#<set-counter>(kotlin.Int){}
+      //   Public signature: /MyEnum.Z.<EEC>.counter.<set-counter>|-8124462411591632783[0]
+      //   Public signature debug description: <set-counter>(kotlin.Int){}
+      set
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}aLambda
+    //   Public signature: /MyEnum.Z.<EEC>.aLambda|3337321219156655813[0]
+    //   Public signature debug description: {}aLambda
+    val aLambda: Function0<Unit>
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-aLambda>(){}kotlin.Function0<kotlin.Unit>
+      //   Public signature: /MyEnum.Z.<EEC>.aLambda.<get-aLambda>|9058518221524596568[0]
+      //   Public signature debug description: <get-aLambda>(){}kotlin.Function0<kotlin.Unit>
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-aLambda>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.aLambda.<get-aLambda>|8927671768328125269[0]
+      //   Public signature debug description: <get-aLambda>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}anObject
+    //   Public signature: /MyEnum.Z.<EEC>.anObject|409091113626572731[0]
+    //   Public signature debug description: {}anObject
+    val anObject: Any
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-anObject>(){}kotlin.Any
+      //   Public signature: /MyEnum.Z.<EEC>.anObject.<get-anObject>|-6807306499596507825[0]
+      //   Public signature debug description: <get-anObject>(){}kotlin.Any
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-anObject>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.anObject.<get-anObject>|6468357437342963609[0]
+      //   Public signature debug description: <get-anObject>(){}
+      get
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#<init>(){}
+    //   Public signature: /MyEnum.Z.<EEC>.<init>|-5645683436151566731[0]
+    //   Public signature debug description: <init>(){}
+    private constructor() /* primary */
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#compareTo(MyEnum){}kotlin.Int
+    //   Public signature: /MyEnum.Z.<EEC>.compareTo|2015858924903177055[0]
+    //   Public signature debug description: compareTo(MyEnum){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#compareTo(MyEnum){}
+    //   Public signature: /MyEnum.Z.<EEC>.compareTo|-1404018836780573573[0]
+    //   Public signature debug description: compareTo(MyEnum){}
+    /* fake */ override operator fun compareTo(other: MyEnum): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#equals(kotlin.Any?){}kotlin.Boolean
+    //   Public signature: /MyEnum.Z.<EEC>.equals|722809408929142791[0]
+    //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#equals(kotlin.Any?){}
+    //   Public signature: /MyEnum.Z.<EEC>.equals|4638265728071529943[0]
+    //   Public signature debug description: equals(kotlin.Any?){}
+    /* fake */ override operator fun equals(other: Any?): Boolean
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#hashCode(){}kotlin.Int
+    //   Public signature: /MyEnum.Z.<EEC>.hashCode|-8048879360829830756[0]
+    //   Public signature debug description: hashCode(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#hashCode(){}
+    //   Public signature: /MyEnum.Z.<EEC>.hashCode|3409210261493131192[0]
+    //   Public signature debug description: hashCode(){}
+    /* fake */ override fun hashCode(): Int
+
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum.Z#toString(){}kotlin.String
+    //   Public signature: /MyEnum.Z.<EEC>.toString|6958853723545266802[0]
+    //   Public signature debug description: toString(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum.Z#toString(){}
+    //   Public signature: /MyEnum.Z.<EEC>.toString|-1522858123163872138[0]
+    //   Public signature debug description: toString(){}
+    /* fake */ override fun toString(): String
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#bar(){}
+    //   Public signature: /MyEnum.Z.<EEC>.bar|496682602797471549[0]
+    //   Public signature debug description: bar(){}
+    fun bar(): Unit
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z#foo(){}
+    //   Public signature: /MyEnum.Z.<EEC>.foo|-1041209573719867811[0]
+    //   Public signature debug description: foo(){}
+    fun foo(): Unit
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}name
+    //   Public signature: /MyEnum.Z.<EEC>.name|4231860309499509769[0]
+    //   Public signature debug description: {}name
+    /* fake */ override val name: String
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-name>(){}kotlin.String
+      //   Public signature: /MyEnum.Z.<EEC>.name.<get-name>|-8006111524522882650[0]
+      //   Public signature debug description: <get-name>(){}kotlin.String
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-name>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.name.<get-name>|5879344792307730109[0]
+      //   Public signature debug description: <get-name>(){}
+      /* fake */ override get(): String
+
+    // CHECK:
+    //   Mangled name: MyEnum.Z{}ordinal
+    //   Public signature: /MyEnum.Z.<EEC>.ordinal|1912745122988592376[0]
+    //   Public signature debug description: {}ordinal
+    /* fake */ override val ordinal: Int
+      // CHECK JVM_IR:
+      //   Mangled name: MyEnum.Z#<get-ordinal>(){}kotlin.Int
+      //   Public signature: /MyEnum.Z.<EEC>.ordinal.<get-ordinal>|-6902664390061762634[0]
+      //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+      // CHECK JS_IR NATIVE:
+      //   Mangled name: MyEnum.Z#<get-ordinal>(){}
+      //   Public signature: /MyEnum.Z.<EEC>.ordinal.<get-ordinal>|8409904226035914023[0]
+      //   Public signature debug description: <get-ordinal>(){}
+      /* fake */ override get(): Int
+
+  }
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#valueOf#static(kotlin.String){}MyEnum
+  //   Public signature: /MyEnum.valueOf|4316550590519800984[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}MyEnum
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#valueOf#static(kotlin.String){}
+  //   Public signature: /MyEnum.valueOf|-4683474617854611729[0]
+  //   Public signature debug description: valueOf#static(kotlin.String){}
+  fun valueOf(value: String): MyEnum
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#values#static(){}kotlin.Array<MyEnum>
+  //   Public signature: /MyEnum.values|3097625172661156808[0]
+  //   Public signature debug description: values#static(){}kotlin.Array<MyEnum>
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#values#static(){}
+  //   Public signature: /MyEnum.values|-8715569000920726747[0]
+  //   Public signature debug description: values#static(){}
+  fun values(): Array<MyEnum>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#compareTo(MyEnum){}kotlin.Int
+  //   Public signature: /MyEnum.compareTo|2015858924903177055[0]
+  //   Public signature debug description: compareTo(MyEnum){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#compareTo(MyEnum){}
+  //   Public signature: /MyEnum.compareTo|-1404018836780573573[0]
+  //   Public signature debug description: compareTo(MyEnum){}
+  /* fake */ override operator fun compareTo(other: MyEnum): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /MyEnum.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#equals(kotlin.Any?){}
+  //   Public signature: /MyEnum.equals|4638265728071529943[0]
+  //   Public signature debug description: equals(kotlin.Any?){}
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#hashCode(){}kotlin.Int
+  //   Public signature: /MyEnum.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#hashCode(){}
+  //   Public signature: /MyEnum.hashCode|3409210261493131192[0]
+  //   Public signature debug description: hashCode(){}
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyEnum#toString(){}kotlin.String
+  //   Public signature: /MyEnum.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: MyEnum#toString(){}
+  //   Public signature: /MyEnum.toString|-1522858123163872138[0]
+  //   Public signature debug description: toString(){}
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: MyEnum#static{}entries
+  //   Public signature: /MyEnum.entries|-5134227801081826149[0]
+  //   Public signature debug description: #static{}entries
+  val entries: EnumEntries<MyEnum>
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-entries>#static(){}kotlin.enums.EnumEntries<MyEnum>
+    //   Public signature: /MyEnum.entries.<get-entries>|-3922959509726908718[0]
+    //   Public signature debug description: <get-entries>#static(){}kotlin.enums.EnumEntries<MyEnum>
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-entries>#static(){}
+    //   Public signature: /MyEnum.entries.<get-entries>|-6068527377476727729[0]
+    //   Public signature debug description: <get-entries>#static(){}
+    get(): EnumEntries<MyEnum>
+
+  // CHECK:
+  //   Mangled name: MyEnum{}name
+  //   Public signature: /MyEnum.name|4231860309499509769[0]
+  //   Public signature debug description: {}name
+  /* fake */ override val name: String
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-name>(){}kotlin.String
+    //   Public signature: /MyEnum.name.<get-name>|-8006111524522882650[0]
+    //   Public signature debug description: <get-name>(){}kotlin.String
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-name>(){}
+    //   Public signature: /MyEnum.name.<get-name>|5879344792307730109[0]
+    //   Public signature debug description: <get-name>(){}
+    /* fake */ override get(): String
+
+  // CHECK:
+  //   Mangled name: MyEnum{}ordinal
+  //   Public signature: /MyEnum.ordinal|1912745122988592376[0]
+  //   Public signature debug description: {}ordinal
+  /* fake */ override val ordinal: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyEnum#<get-ordinal>(){}kotlin.Int
+    //   Public signature: /MyEnum.ordinal.<get-ordinal>|-6902664390061762634[0]
+    //   Public signature debug description: <get-ordinal>(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyEnum#<get-ordinal>(){}
+    //   Public signature: /MyEnum.ordinal.<get-ordinal>|8409904226035914023[0]
+    //   Public signature debug description: <get-ordinal>(){}
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.sig.kt.txt b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.sig.kt.txt
new file mode 100644
index 00000000000..1ab88d6fe9e
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.fir.sig.kt.txt
@@ -0,0 +1,193 @@
+// CHECK:
+//   Mangled name: MyMap
+//   Public signature: /MyMap|null[0]
+class MyMap<K : Any, V : Any> : AbstractMutableMap<K, V> {
+  // CHECK:
+  //   Mangled name: MyMap#<init>(){}
+  //   Public signature: /MyMap.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: MyMap#clear(){}
+  //   Public signature: /MyMap.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#clone(){}kotlin.Any?
+  //   Public signature: /MyMap.clone|-7083896195458302612[0]
+  //   Public signature debug description: clone(){}kotlin.Any?
+  protected_and_package /* fake */ override fun clone(): Any?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#compute(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1?,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Public signature: /MyMap.compute|8707373617613354757[0]
+  //   Public signature debug description: compute(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1?,out|1:1?>{EnhancedNullability}){}1:1?
+  /* fake */ override fun compute(p0: @EnhancedNullability K, p1: @EnhancedNullability BiFunction<in @EnhancedNullability K, in V?, out V?>): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#computeIfAbsent(1:0{EnhancedNullability};java.util.function.Function<in|1:0{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}1:1{EnhancedNullability}
+  //   Public signature: /MyMap.computeIfAbsent|6152183439273290645[0]
+  //   Public signature debug description: computeIfAbsent(1:0{EnhancedNullability};java.util.function.Function<in|1:0{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}1:1{EnhancedNullability}
+  /* fake */ override fun computeIfAbsent(p0: @EnhancedNullability K, p1: @EnhancedNullability Function<in @EnhancedNullability K, out @EnhancedNullability V>): @EnhancedNullability V
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Mangled name for the signature by IR:       computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Mangled name for the signature by Frontend: computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?>{EnhancedNullability}){}1:1?
+  //   Public signature by IR: /MyMap.computeIfPresent|-2673672788318360066[0]
+  //   Public signature by IR debug description: computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Public signature by Frontend: /MyMap.computeIfPresent|-4313180944690406140[0]
+  //   Public signature by Frontend debug description: computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?>{EnhancedNullability}){}1:1?
+  /* fake */ override fun computeIfPresent(p0: @EnhancedNullability K, p1: @EnhancedNullability BiFunction<in @EnhancedNullability K, in V, out V?>): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#containsKey(1:0?){}kotlin.Boolean
+  //   Public signature: /MyMap.containsKey|5388260987070917879[0]
+  //   Public signature debug description: containsKey(1:0?){}kotlin.Boolean
+  /* fake */ override fun containsKey(p0: K?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#containsValue(1:1?){}kotlin.Boolean
+  //   Public signature: /MyMap.containsValue|6075307672600079396[0]
+  //   Public signature debug description: containsValue(1:1?){}kotlin.Boolean
+  /* fake */ override fun containsValue(p0: V?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /MyMap.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(p0: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: MyMap#forEach(java.util.function.BiConsumer<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /MyMap.forEach|-3078533954397018194[0]
+  //   Public signature debug description: forEach(java.util.function.BiConsumer<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun forEach(p0: @EnhancedNullability BiConsumer<in @EnhancedNullability K, in @EnhancedNullability V>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#get(1:0?){}1:1?
+  //   Public signature: /MyMap.get|-6772263552617817959[0]
+  //   Public signature debug description: get(1:0?){}1:1?
+  /* fake */ override operator fun get(p0: K?): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#hashCode(){}kotlin.Int
+  //   Public signature: /MyMap.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#isEmpty(){}kotlin.Boolean
+  //   Public signature: /MyMap.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1,in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Mangled name for the signature by IR:       merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1,in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Mangled name for the signature by Frontend: merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?>{EnhancedNullability}){}1:1?
+  //   Public signature by IR: /MyMap.merge|5136195963180492586[0]
+  //   Public signature by IR debug description: merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1,in|1:1,out|1:1?>{EnhancedNullability}){}1:1?
+  //   Public signature by Frontend: /MyMap.merge|-7730033017111273031[0]
+  //   Public signature by Frontend debug description: merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?>{EnhancedNullability}){}1:1?
+  /* fake */ override fun merge(p0: @EnhancedNullability K, p1: @EnhancedNullability (V & Any), p2: @EnhancedNullability BiFunction<in V, in V, out V?>): V?
+
+  // CHECK:
+  //   Mangled name: MyMap#putAll(kotlin.collections.Map<out|1:0?,1:1?>{EnhancedNullability}){}
+  //   Mangled name for the signature by IR:       putAll(kotlin.collections.Map<out|1:0?,1:1?>{EnhancedNullability}){}
+  //   Mangled name for the signature by Frontend: putAll(kotlin.collections.Map<out|1:0?,out|1:1?>{EnhancedNullability}){}
+  //   Public signature by IR: /MyMap.putAll|8252374948943605914[0]
+  //   Public signature by IR debug description: putAll(kotlin.collections.Map<out|1:0?,1:1?>{EnhancedNullability}){}
+  //   Public signature by Frontend: /MyMap.putAll|2145725647041437129[0]
+  //   Public signature by Frontend debug description: putAll(kotlin.collections.Map<out|1:0?,out|1:1?>{EnhancedNullability}){}
+  /* fake */ override fun putAll(p0: @EnhancedNullability Map<out K?, V?>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#putIfAbsent(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?
+  //   Public signature: /MyMap.putIfAbsent|-8436525025860060266[0]
+  //   Public signature debug description: putIfAbsent(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?
+  /* fake */ override fun putIfAbsent(p0: @EnhancedNullability K, p1: @EnhancedNullability V): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#remove(1:0?){}1:1?
+  //   Public signature: /MyMap.remove|-6409265674850759324[0]
+  //   Public signature debug description: remove(1:0?){}1:1?
+  /* fake */ override fun remove(p0: K?): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#replace(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?
+  //   Public signature: /MyMap.replace|5602916868878322979[0]
+  //   Public signature debug description: replace(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?
+  /* fake */ override fun replace(p0: @EnhancedNullability K, p1: @EnhancedNullability V): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#replace(1:0{EnhancedNullability};1:1{EnhancedNullability};1:1{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /MyMap.replace|-7414031042140179973[0]
+  //   Public signature debug description: replace(1:0{EnhancedNullability};1:1{EnhancedNullability};1:1{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun replace(p0: @EnhancedNullability K, p1: @EnhancedNullability V, p2: @EnhancedNullability V): Boolean
+
+  // CHECK:
+  //   Mangled name: MyMap#replaceAll(java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /MyMap.replaceAll|8091434451270596303[0]
+  //   Public signature debug description: replaceAll(java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability BiFunction<in @EnhancedNullability K, in @EnhancedNullability V, out @EnhancedNullability V>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /MyMap.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#put(1:0;1:1){}1:1?
+  //   Public signature: /MyMap.put|8231545920718079981[0]
+  //   Public signature debug description: put(1:0;1:1){}1:1?
+  override fun put(key: K, value: V): V?
+
+  // CHECK:
+  //   Mangled name: MyMap{}keys
+  //   Public signature: /MyMap.keys|-1539062068328255324[0]
+  //   Public signature debug description: {}keys
+  /* fake */ override val keys: MutableSet<K?>?
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-keys>(){}kotlin.collections.MutableSet<1:0?>?
+    //   Public signature: /MyMap.keys.<get-keys>|-1655820107680360252[0]
+    //   Public signature debug description: <get-keys>(){}kotlin.collections.MutableSet<1:0?>?
+    /* fake */ override get(): MutableSet<K?>?
+
+  // CHECK:
+  //   Mangled name: MyMap{}size
+  //   Public signature: /MyMap.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-size>(){}kotlin.Int
+    //   Public signature: /MyMap.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+  // CHECK:
+  //   Mangled name: MyMap{}values
+  //   Public signature: /MyMap.values|-764749005844117249[0]
+  //   Public signature debug description: {}values
+  /* fake */ override val values: MutableCollection<V?>?
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-values>(){}kotlin.collections.MutableCollection<1:1?>?
+    //   Public signature: /MyMap.values.<get-values>|-600458440523652989[0]
+    //   Public signature debug description: <get-values>(){}kotlin.collections.MutableCollection<1:1?>?
+    /* fake */ override get(): MutableCollection<V?>?
+
+  // CHECK:
+  //   Mangled name: MyMap{}entries
+  //   Public signature: /MyMap.entries|-586096469347622282[0]
+  //   Public signature debug description: {}entries
+  override val entries: MutableSet<MutableEntry<K, V>>
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-entries>(){}kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<1:0,1:1>>
+    //   Public signature: /MyMap.entries.<get-entries>|-6853624087387317257[0]
+    //   Public signature debug description: <get-entries>(){}kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<1:0,1:1>>
+    override get(): MutableSet<MutableEntry<K, V>>
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.kt b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.kt
index 3a107ad62ae..e2e791c43f4 100644
--- a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.kt
+++ b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.kt
@@ -3,7 +3,7 @@
 // JVM_TARGET: 1.8
 // TARGET_BACKEND: JVM_IR
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Value parameters in fake overrides generated by K1 and K2 are different
 
 class MyMap<K : Any, V : Any> : AbstractMutableMap<K, V>() {
diff --git a/compiler/testData/ir/irText/firProblems/AbstractMutableMap.sig.kt.txt b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.sig.kt.txt
new file mode 100644
index 00000000000..83bc86698f2
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/AbstractMutableMap.sig.kt.txt
@@ -0,0 +1,181 @@
+// CHECK:
+//   Mangled name: MyMap
+//   Public signature: /MyMap|null[0]
+class MyMap<K : Any, V : Any> : AbstractMutableMap<K, V> {
+  // CHECK:
+  //   Mangled name: MyMap#<init>(){}
+  //   Public signature: /MyMap.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: MyMap#clear(){}
+  //   Public signature: /MyMap.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#clone(){}kotlin.Any?
+  //   Public signature: /MyMap.clone|-7083896195458302612[0]
+  //   Public signature debug description: clone(){}kotlin.Any?
+  protected_and_package /* fake */ override fun clone(): Any?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#compute(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1?{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  //   Public signature: /MyMap.compute|4714573429337571093[0]
+  //   Public signature debug description: compute(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1?{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  /* fake */ override fun compute(p0: @EnhancedNullability K, p1: @EnhancedNullability BiFunction<in @EnhancedNullability K, in @EnhancedNullability V?, out @EnhancedNullability V?>): @EnhancedNullability V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#computeIfAbsent(1:0{EnhancedNullability};java.util.function.Function<in|1:0{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}1:1{EnhancedNullability}
+  //   Public signature: /MyMap.computeIfAbsent|6152183439273290645[0]
+  //   Public signature debug description: computeIfAbsent(1:0{EnhancedNullability};java.util.function.Function<in|1:0{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}1:1{EnhancedNullability}
+  /* fake */ override fun computeIfAbsent(p0: @EnhancedNullability K, p1: @EnhancedNullability Function<in @EnhancedNullability K, out @EnhancedNullability V>): @EnhancedNullability V
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  //   Public signature: /MyMap.computeIfPresent|-5841525018102765873[0]
+  //   Public signature debug description: computeIfPresent(1:0{EnhancedNullability};java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  /* fake */ override fun computeIfPresent(p0: @EnhancedNullability K, p1: @EnhancedNullability BiFunction<in @EnhancedNullability K, in @EnhancedNullability V, out @EnhancedNullability V?>): @EnhancedNullability V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#containsKey(1:0){}kotlin.Boolean
+  //   Public signature: /MyMap.containsKey|-2697616884574929105[0]
+  //   Public signature debug description: containsKey(1:0){}kotlin.Boolean
+  /* fake */ override fun containsKey(key: K): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#containsValue(1:1){}kotlin.Boolean
+  //   Public signature: /MyMap.containsValue|4814293423579408279[0]
+  //   Public signature debug description: containsValue(1:1){}kotlin.Boolean
+  /* fake */ override fun containsValue(value: V): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /MyMap.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: MyMap#forEach(java.util.function.BiConsumer<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /MyMap.forEach|-3078533954397018194[0]
+  //   Public signature debug description: forEach(java.util.function.BiConsumer<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun forEach(p0: @EnhancedNullability BiConsumer<in @EnhancedNullability K, in @EnhancedNullability V>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#get(1:0){}1:1?
+  //   Public signature: /MyMap.get|-2177239518810968262[0]
+  //   Public signature debug description: get(1:0){}1:1?
+  /* fake */ override operator fun get(key: K): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#hashCode(){}kotlin.Int
+  //   Public signature: /MyMap.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#isEmpty(){}kotlin.Boolean
+  //   Public signature: /MyMap.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  //   Public signature: /MyMap.merge|5784030730910430027[0]
+  //   Public signature debug description: merge(1:0{EnhancedNullability};1:1{EnhancedNullability};java.util.function.BiFunction<in|1:1{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1?{EnhancedNullability}>{EnhancedNullability}){}1:1?{EnhancedNullability}
+  /* fake */ override fun merge(p0: @EnhancedNullability K, p1: @EnhancedNullability V, p2: @EnhancedNullability BiFunction<in @EnhancedNullability V, in @EnhancedNullability V, out @EnhancedNullability V?>): @EnhancedNullability V?
+
+  // CHECK:
+  //   Mangled name: MyMap#putAll(kotlin.collections.Map<out|1:0,1:1>){}
+  //   Public signature: /MyMap.putAll|3806055228188180795[0]
+  //   Public signature debug description: putAll(kotlin.collections.Map<out|1:0,1:1>){}
+  /* fake */ override fun putAll(from: Map<out K, V>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#putIfAbsent(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?{EnhancedNullability}
+  //   Public signature: /MyMap.putIfAbsent|-6480034727897367684[0]
+  //   Public signature debug description: putIfAbsent(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?{EnhancedNullability}
+  /* fake */ override fun putIfAbsent(p0: @EnhancedNullability K, p1: @EnhancedNullability V): @EnhancedNullability V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#remove(1:0){}1:1?
+  //   Public signature: /MyMap.remove|-2166109024517733367[0]
+  //   Public signature debug description: remove(1:0){}1:1?
+  /* fake */ override fun remove(key: K): V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#replace(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?{EnhancedNullability}
+  //   Public signature: /MyMap.replace|2326634020395552533[0]
+  //   Public signature debug description: replace(1:0{EnhancedNullability};1:1{EnhancedNullability}){}1:1?{EnhancedNullability}
+  /* fake */ override fun replace(p0: @EnhancedNullability K, p1: @EnhancedNullability V): @EnhancedNullability V?
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#replace(1:0{EnhancedNullability};1:1{EnhancedNullability};1:1{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /MyMap.replace|-7414031042140179973[0]
+  //   Public signature debug description: replace(1:0{EnhancedNullability};1:1{EnhancedNullability};1:1{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun replace(p0: @EnhancedNullability K, p1: @EnhancedNullability V, p2: @EnhancedNullability V): Boolean
+
+  // CHECK:
+  //   Mangled name: MyMap#replaceAll(java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /MyMap.replaceAll|8091434451270596303[0]
+  //   Public signature debug description: replaceAll(java.util.function.BiFunction<in|1:0{EnhancedNullability},in|1:1{EnhancedNullability},out|1:1{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability BiFunction<in @EnhancedNullability K, in @EnhancedNullability V, out @EnhancedNullability V>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#toString(){}kotlin.String
+  //   Public signature: /MyMap.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  /* fake */ override fun toString(): String
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyMap#put(1:0;1:1){}1:1?
+  //   Public signature: /MyMap.put|8231545920718079981[0]
+  //   Public signature debug description: put(1:0;1:1){}1:1?
+  override fun put(key: K, value: V): V?
+
+  // CHECK:
+  //   Mangled name: MyMap{}keys
+  //   Public signature: /MyMap.keys|-1539062068328255324[0]
+  //   Public signature debug description: {}keys
+  /* fake */ override val keys: MutableSet<K>
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-keys>(){}kotlin.collections.MutableSet<1:0>
+    //   Public signature: /MyMap.keys.<get-keys>|7916886785914150473[0]
+    //   Public signature debug description: <get-keys>(){}kotlin.collections.MutableSet<1:0>
+    /* fake */ override get(): MutableSet<K>
+
+  // CHECK:
+  //   Mangled name: MyMap{}size
+  //   Public signature: /MyMap.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-size>(){}kotlin.Int
+    //   Public signature: /MyMap.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+  // CHECK:
+  //   Mangled name: MyMap{}values
+  //   Public signature: /MyMap.values|-764749005844117249[0]
+  //   Public signature debug description: {}values
+  /* fake */ override val values: MutableCollection<V>
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-values>(){}kotlin.collections.MutableCollection<1:1>
+    //   Public signature: /MyMap.values.<get-values>|2480674037943213638[0]
+    //   Public signature debug description: <get-values>(){}kotlin.collections.MutableCollection<1:1>
+    /* fake */ override get(): MutableCollection<V>
+
+  // CHECK:
+  //   Mangled name: MyMap{}entries
+  //   Public signature: /MyMap.entries|-586096469347622282[0]
+  //   Public signature debug description: {}entries
+  override val entries: MutableSet<MutableEntry<K, V>>
+    // CHECK JVM_IR:
+    //   Mangled name: MyMap#<get-entries>(){}kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<1:0,1:1>>
+    //   Public signature: /MyMap.entries.<get-entries>|-6853624087387317257[0]
+    //   Public signature debug description: <get-entries>(){}kotlin.collections.MutableSet<kotlin.collections.MutableMap.MutableEntry<1:0,1:1>>
+    override get(): MutableSet<MutableEntry<K, V>>
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/ArrayListOverrides.fir.sig.kt.txt b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.fir.sig.kt.txt
new file mode 100644
index 00000000000..599660d10ec
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.fir.sig.kt.txt
@@ -0,0 +1,477 @@
+// CHECK:
+//   Mangled name: A1
+//   Public signature: /A1|null[0]
+class A1 : ArrayList<String> {
+  // CHECK:
+  //   Mangled name: A1#<init>(){}
+  //   Public signature: /A1.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.add|1013043421416614297[0]
+  //   Public signature debug description: add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(p0: @EnhancedNullability String): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  //   Public signature: /A1.add|-2609504073906581982[0]
+  //   Public signature debug description: add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  /* fake */ override fun add(p0: Int, p1: @EnhancedNullability String): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#addAll(kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.addAll|3883602098922245867[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: @EnhancedNullability Collection<out @EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#addAll(kotlin.Int;kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.addAll|-1734069118163689030[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: Int, p1: @EnhancedNullability Collection<out @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#clear(){}
+  //   Public signature: /A1.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /A1.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.contains|-1288346193708144028[0]
+  //   Public signature debug description: contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(p0: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#containsAll(kotlin.collections.Collection<kotlin.String?>){}kotlin.Boolean
+  //   Public signature: /A1.containsAll|1049727718390523309[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<kotlin.String?>){}kotlin.Boolean
+  /* fake */ override fun containsAll(p0: Collection<String?>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#ensureCapacity(kotlin.Int){}
+  //   Public signature: /A1.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /A1.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(p0: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  //   Public signature: /A1.forEach|-5141242812493329438[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.get|-5223165249102944743[0]
+  //   Public signature debug description: get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun get(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#hashCode(){}kotlin.Int
+  //   Public signature: /A1.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A1.indexOf|4663174940951508272[0]
+  //   Public signature debug description: indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(p0: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#isEmpty(){}kotlin.Boolean
+  //   Public signature: /A1.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.iterator|1587384006376391028[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A1.lastIndexOf|546858614952815505[0]
+  //   Public signature debug description: lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(p0: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.listIterator|-4142337689496060808[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.listIterator|-5700342405546747272[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(p0: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#parallelStream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A1.parallelStream|-4896737022635116901[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#remove(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.remove|2256698784022402098[0]
+  //   Public signature debug description: remove(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(p0: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A1.removeAll|239019554007958597[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(p0: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.removeAt|-4284695263292850234[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun removeAt(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.removeIf|-1670885194148112260[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A1.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: A1#replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /A1.replaceAll|4357913002581764262[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A1.retainAll|8583629559312465774[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(p0: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.set|-410612784715293145[0]
+  //   Public signature debug description: set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun set(p0: Int, p1: @EnhancedNullability String): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A1#sort(java.util.Comparator<in|kotlin.String?>?){}
+  //   Public signature: /A1.sort|5087834210959411894[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|kotlin.String?>?){}
+  /* fake */ override fun sort(p0: Comparator<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A1.spliterator|568936852624165869[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#stream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A1.stream|-795993718377355146[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.subList|1834706356652401774[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(p0: Int, p1: Int): @EnhancedNullability MutableList<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /A1.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /A1.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A1#trimToSize(){}
+  //   Public signature: /A1.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: A1{}size
+  //   Public signature: /A1.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A1#<get-size>(){}kotlin.Int
+    //   Public signature: /A1.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: A2
+//   Public signature: /A2|null[0]
+class A2 : ArrayList<String> {
+  // CHECK:
+  //   Mangled name: A2#<init>(){}
+  //   Public signature: /A2.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.add|1013043421416614297[0]
+  //   Public signature debug description: add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(p0: @EnhancedNullability String): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  //   Public signature: /A2.add|-2609504073906581982[0]
+  //   Public signature debug description: add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  /* fake */ override fun add(p0: Int, p1: @EnhancedNullability String): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#addAll(kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.addAll|3883602098922245867[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: @EnhancedNullability Collection<out @EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#addAll(kotlin.Int;kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.addAll|-1734069118163689030[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<out|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: Int, p1: @EnhancedNullability Collection<out @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#clear(){}
+  //   Public signature: /A2.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /A2.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.contains|-1288346193708144028[0]
+  //   Public signature debug description: contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(p0: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#containsAll(kotlin.collections.Collection<kotlin.String?>){}kotlin.Boolean
+  //   Public signature: /A2.containsAll|1049727718390523309[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<kotlin.String?>){}kotlin.Boolean
+  /* fake */ override fun containsAll(p0: Collection<String?>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#ensureCapacity(kotlin.Int){}
+  //   Public signature: /A2.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /A2.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(p0: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  //   Public signature: /A2.forEach|-5141242812493329438[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.get|-5223165249102944743[0]
+  //   Public signature debug description: get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun get(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#hashCode(){}kotlin.Int
+  //   Public signature: /A2.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A2.indexOf|4663174940951508272[0]
+  //   Public signature debug description: indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(p0: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#isEmpty(){}kotlin.Boolean
+  //   Public signature: /A2.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.iterator|1587384006376391028[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A2.lastIndexOf|546858614952815505[0]
+  //   Public signature debug description: lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(p0: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.listIterator|-4142337689496060808[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.listIterator|-5700342405546747272[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(p0: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#parallelStream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A2.parallelStream|-4896737022635116901[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A2.removeAll|239019554007958597[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(p0: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.removeAt|-4284695263292850234[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun removeAt(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.removeIf|-1670885194148112260[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A2.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: A2#replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /A2.replaceAll|4357913002581764262[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A2.retainAll|8583629559312465774[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(p0: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.set|-410612784715293145[0]
+  //   Public signature debug description: set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun set(p0: Int, p1: @EnhancedNullability String): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A2#sort(java.util.Comparator<in|kotlin.String?>?){}
+  //   Public signature: /A2.sort|5087834210959411894[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|kotlin.String?>?){}
+  /* fake */ override fun sort(p0: Comparator<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A2.spliterator|568936852624165869[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#stream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A2.stream|-795993718377355146[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.subList|1834706356652401774[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(p0: Int, p1: Int): @EnhancedNullability MutableList<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /A2.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /A2.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A2#trimToSize(){}
+  //   Public signature: /A2.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#remove(kotlin.String){}kotlin.Boolean
+  //   Public signature: /A2.remove|-4681585628882047709[0]
+  //   Public signature debug description: remove(kotlin.String){}kotlin.Boolean
+  override fun remove(x: String): Boolean
+
+  // CHECK:
+  //   Mangled name: A2{}size
+  //   Public signature: /A2.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A2#<get-size>(){}kotlin.Int
+    //   Public signature: /A2.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/ArrayListOverrides.kt b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.kt
index 62893e47648..eb49bcdd547 100644
--- a/compiler/testData/ir/irText/firProblems/ArrayListOverrides.kt
+++ b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.kt
@@ -2,7 +2,7 @@
 // SKIP_KLIB_TEST
 // TARGET_BACKEND: JVM_IR
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Value parameters in fake overrides generated by K1 and K2 are different
 
 class A1 : java.util.ArrayList<String>()
diff --git a/compiler/testData/ir/irText/firProblems/ArrayListOverrides.sig.kt.txt b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.sig.kt.txt
new file mode 100644
index 00000000000..178da57baaa
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/ArrayListOverrides.sig.kt.txt
@@ -0,0 +1,477 @@
+// CHECK:
+//   Mangled name: A1
+//   Public signature: /A1|null[0]
+class A1 : ArrayList<String> {
+  // CHECK:
+  //   Mangled name: A1#<init>(){}
+  //   Public signature: /A1.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.add|1013043421416614297[0]
+  //   Public signature debug description: add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(element: @EnhancedNullability String): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  //   Public signature: /A1.add|-2609504073906581982[0]
+  //   Public signature debug description: add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  /* fake */ override fun add(index: Int, element: @EnhancedNullability String): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#addAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.addAll|-895603574928921635[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(elements: @EnhancedNullability Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#addAll(kotlin.Int;kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.addAll|-7321521126562575377[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(index: Int, elements: @EnhancedNullability Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#clear(){}
+  //   Public signature: /A1.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /A1.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.contains|-1288346193708144028[0]
+  //   Public signature debug description: contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(element: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#containsAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A1.containsAll|3856626117350599597[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun containsAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#ensureCapacity(kotlin.Int){}
+  //   Public signature: /A1.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#equals(kotlin.Any?{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.equals|4126616015386471185[0]
+  //   Public signature debug description: equals(kotlin.Any?{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: @EnhancedNullability Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  //   Public signature: /A1.forEach|-5141242812493329438[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.get|-5223165249102944743[0]
+  //   Public signature debug description: get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun get(index: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#hashCode(){}kotlin.Int
+  //   Public signature: /A1.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A1.indexOf|4663174940951508272[0]
+  //   Public signature debug description: indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(element: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#isEmpty(){}kotlin.Boolean
+  //   Public signature: /A1.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.iterator|1587384006376391028[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A1.lastIndexOf|546858614952815505[0]
+  //   Public signature debug description: lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(element: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.listIterator|-4142337689496060808[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.listIterator|-5700342405546747272[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(index: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#parallelStream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.parallelStream|5674745598510225962[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#remove(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.remove|2256698784022402098[0]
+  //   Public signature debug description: remove(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(element: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A1.removeAll|239019554007958597[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.removeAt|-4284695263292850234[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun removeAt(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A1.removeIf|-1670885194148112260[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A1#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A1.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: A1#replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /A1.replaceAll|4357913002581764262[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A1.retainAll|8583629559312465774[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.set|-410612784715293145[0]
+  //   Public signature debug description: set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun set(index: Int, element: @EnhancedNullability String): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A1#sort(java.util.Comparator<in|kotlin.String?>?){}
+  //   Public signature: /A1.sort|5087834210959411894[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|kotlin.String?>?){}
+  /* fake */ override fun sort(p0: Comparator<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A1.spliterator|568936852624165869[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#stream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.stream|-5169222176134445645[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A1.subList|1834706356652401774[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(fromIndex: Int, toIndex: Int): @EnhancedNullability MutableList<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /A1.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /A1.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A1#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A1.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A1#trimToSize(){}
+  //   Public signature: /A1.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: A1{}size
+  //   Public signature: /A1.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A1#<get-size>(){}kotlin.Int
+    //   Public signature: /A1.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: A2
+//   Public signature: /A2|null[0]
+class A2 : ArrayList<String> {
+  // CHECK:
+  //   Mangled name: A2#<init>(){}
+  //   Public signature: /A2.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.add|1013043421416614297[0]
+  //   Public signature debug description: add(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(element: @EnhancedNullability String): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  //   Public signature: /A2.add|-2609504073906581982[0]
+  //   Public signature debug description: add(kotlin.Int;kotlin.String{EnhancedNullability}){}
+  /* fake */ override fun add(index: Int, element: @EnhancedNullability String): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#addAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.addAll|-895603574928921635[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(elements: @EnhancedNullability Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#addAll(kotlin.Int;kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.addAll|-7321521126562575377[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(index: Int, elements: @EnhancedNullability Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#clear(){}
+  //   Public signature: /A2.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /A2.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.contains|-1288346193708144028[0]
+  //   Public signature debug description: contains(kotlin.String{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(element: @EnhancedNullability String): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#containsAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A2.containsAll|3856626117350599597[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun containsAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#ensureCapacity(kotlin.Int){}
+  //   Public signature: /A2.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#equals(kotlin.Any?{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.equals|4126616015386471185[0]
+  //   Public signature debug description: equals(kotlin.Any?{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: @EnhancedNullability Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  //   Public signature: /A2.forEach|-5141242812493329438[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|kotlin.String?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.get|-5223165249102944743[0]
+  //   Public signature debug description: get(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun get(index: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#hashCode(){}kotlin.Int
+  //   Public signature: /A2.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A2.indexOf|4663174940951508272[0]
+  //   Public signature debug description: indexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(element: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#isEmpty(){}kotlin.Boolean
+  //   Public signature: /A2.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.iterator|1587384006376391028[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /A2.lastIndexOf|546858614952815505[0]
+  //   Public signature debug description: lastIndexOf(kotlin.String{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(element: @EnhancedNullability String): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.listIterator|-4142337689496060808[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.listIterator|-5700342405546747272[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(index: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#parallelStream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.parallelStream|5674745598510225962[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A2.removeAll|239019554007958597[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.removeAt|-4284695263292850234[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun removeAt(p0: Int): @EnhancedNullability String
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /A2.removeIf|-1670885194148112260[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|kotlin.String{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability String>): Boolean
+
+  // CHECK:
+  //   Mangled name: A2#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A2.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: A2#replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /A2.replaceAll|4357913002581764262[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<kotlin.String{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /A2.retainAll|8583629559312465774[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<kotlin.String{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(elements: Collection<@EnhancedNullability String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.set|-410612784715293145[0]
+  //   Public signature debug description: set(kotlin.Int;kotlin.String{EnhancedNullability}){}kotlin.String{EnhancedNullability}
+  /* fake */ override operator fun set(index: Int, element: @EnhancedNullability String): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A2#sort(java.util.Comparator<in|kotlin.String?>?){}
+  //   Public signature: /A2.sort|5087834210959411894[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|kotlin.String?>?){}
+  /* fake */ override fun sort(p0: Comparator<in String?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  //   Public signature: /A2.spliterator|568936852624165869[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<kotlin.String?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<String?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#stream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.stream|-5169222176134445645[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /A2.subList|1834706356652401774[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<kotlin.String{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(fromIndex: Int, toIndex: Int): @EnhancedNullability MutableList<@EnhancedNullability String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /A2.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /A2.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /A2.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: A2#trimToSize(){}
+  //   Public signature: /A2.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: A2#remove(kotlin.String){}kotlin.Boolean
+  //   Public signature: /A2.remove|-4681585628882047709[0]
+  //   Public signature debug description: remove(kotlin.String){}kotlin.Boolean
+  override fun remove(x: String): Boolean
+
+  // CHECK:
+  //   Mangled name: A2{}size
+  //   Public signature: /A2.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A2#<get-size>(){}kotlin.Int
+    //   Public signature: /A2.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.kt b/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.kt
index 2ffd7690312..1d71c3c6067 100644
--- a/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.kt
+++ b/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.kt
@@ -1,7 +1,6 @@
 // FIR_IDENTICAL
 // WITH_STDLIB
 // ISSUE: KT-60312
-// SKIP_SIGNATURE_DUMP
 
 fun main() {
     consumeVarargs(1, 2)
diff --git a/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.sig.kt.txt b/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.sig.kt.txt
new file mode 100644
index 00000000000..685b8369361
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/IntArrayAsVararg.sig.kt.txt
@@ -0,0 +1,19 @@
+// CHECK:
+//   Mangled name: #consumeVarargs(kotlin.IntArray...){}
+//   Public signature: /consumeVarargs|2702777436513705083[0]
+//   Public signature debug description: consumeVarargs(kotlin.IntArray...){}
+fun consumeVarargs(vararg arr: Int): Unit
+
+// CHECK JVM_IR:
+//   Mangled name: #main(){}
+//   Mangled name for the signature by IR:       main(){}
+//   Mangled name for the signature by Frontend: main(){}%IntArrayAsVararg.kt
+//   Public signature by IR: /main|-4284757841571462650[0]
+//   Public signature by IR debug description: main(){}
+//   Public signature by Frontend: /main|-2337641484263297417[0]
+//   Public signature by Frontend debug description: main(){}%IntArrayAsVararg.kt
+// CHECK JS_IR NATIVE:
+//   Mangled name: #main(){}
+//   Public signature: /main|-4284757841571462650[0]
+//   Public signature debug description: main(){}
+fun main(): Unit
diff --git a/compiler/testData/ir/irText/firProblems/MultiList.fir.sig.kt.txt b/compiler/testData/ir/irText/firProblems/MultiList.fir.sig.kt.txt
new file mode 100644
index 00000000000..06b161e67d6
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/MultiList.fir.sig.kt.txt
@@ -0,0 +1,631 @@
+// CHECK:
+//   Mangled name: FinalList
+//   Public signature: /FinalList|null[0]
+class FinalList : SomeList<String> {
+  // CHECK:
+  //   Mangled name: FinalList#<init>(){}
+  //   Public signature: /FinalList.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#add(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.add|-8984599614497554904[0]
+  //   Public signature debug description: add(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(p0: @EnhancedNullability Some<String>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#add(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}
+  //   Public signature: /FinalList.add|6103522216647968303[0]
+  //   Public signature debug description: add(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}
+  /* fake */ override fun add(p0: Int, p1: @EnhancedNullability Some<String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#addAll(kotlin.collections.Collection<out|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.addAll|-808020497122409848[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<out|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: @EnhancedNullability Collection<out @EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#addAll(kotlin.Int;kotlin.collections.Collection<out|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.addAll|-2436690291193212609[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<out|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: Int, p1: @EnhancedNullability Collection<out @EnhancedNullability Some<String>>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#clear(){}
+  //   Public signature: /FinalList.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /FinalList.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#contains(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.contains|3096303196508390878[0]
+  //   Public signature debug description: contains(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(p0: @EnhancedNullability Some<String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#containsAll(kotlin.collections.Collection<Some<kotlin.String>?>){}kotlin.Boolean
+  //   Public signature: /FinalList.containsAll|5422538213063988463[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<kotlin.String>?>){}kotlin.Boolean
+  /* fake */ override fun containsAll(p0: Collection<Some<String>?>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#ensureCapacity(kotlin.Int){}
+  //   Public signature: /FinalList.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /FinalList.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(p0: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#forEach(java.util.function.Consumer<in|Some<kotlin.String>?>?){}
+  //   Public signature: /FinalList.forEach|4696325404101105686[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<kotlin.String>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<String>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#get(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  //   Public signature: /FinalList.get|-1548509062534898774[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  /* fake */ override operator fun get(p0: Int): @EnhancedNullability Some<String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#hashCode(){}kotlin.Int
+  //   Public signature: /FinalList.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#indexOf(Some<kotlin.String>{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /FinalList.indexOf|7750638587776299509[0]
+  //   Public signature debug description: indexOf(Some<kotlin.String>{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(p0: @EnhancedNullability Some<String>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /FinalList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#iterator(){}kotlin.collections.MutableIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.iterator|8558402996726649403[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#lastIndexOf(Some<kotlin.String>{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /FinalList.lastIndexOf|5741372771241017733[0]
+  //   Public signature debug description: lastIndexOf(Some<kotlin.String>{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(p0: @EnhancedNullability Some<String>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#listIterator(){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.listIterator|8523841103372258778[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.listIterator|-1256207950105493440[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(p0: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#parallelStream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.parallelStream|8044059385260403489[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#remove(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.remove|1113376285786700007[0]
+  //   Public signature debug description: remove(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(p0: @EnhancedNullability Some<String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /FinalList.removeAll|8283758866692309032[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(p0: Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeAt(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  //   Public signature: /FinalList.removeAt|720917123303312228[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  /* fake */ override operator fun removeAt(p0: Int): @EnhancedNullability Some<String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeIf(java.util.function.Predicate<in|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.removeIf|8503205219992947771[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability Some<String>>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /FinalList.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: FinalList#replaceAll(java.util.function.UnaryOperator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /FinalList.replaceAll|-2438443123103518985[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability Some<String>>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#retainAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /FinalList.retainAll|-7465258836476223838[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(p0: Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#set(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}Some<kotlin.String>{EnhancedNullability}
+  //   Public signature: /FinalList.set|-2357920566185129420[0]
+  //   Public signature debug description: set(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}Some<kotlin.String>{EnhancedNullability}
+  /* fake */ override operator fun set(p0: Int, p1: @EnhancedNullability Some<String>): @EnhancedNullability Some<String>
+
+  // CHECK:
+  //   Mangled name: FinalList#sort(java.util.Comparator<in|Some<kotlin.String>?>?){}
+  //   Public signature: /FinalList.sort|788869724005081799[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|Some<kotlin.String>?>?){}
+  /* fake */ override fun sort(p0: Comparator<in Some<String>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#spliterator(){}java.util.Spliterator<Some<kotlin.String>?>{EnhancedNullability}
+  //   Public signature: /FinalList.spliterator|1821695929438060632[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<kotlin.String>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<String>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#stream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.stream|904818870795057646[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.subList|-454918096443177489[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(p0: Int, p1: Int): @EnhancedNullability MutableList<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /FinalList.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /FinalList.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /FinalList.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: FinalList#trimToSize(){}
+  //   Public signature: /FinalList.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: FinalList{}size
+  //   Public signature: /FinalList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: FinalList#<get-size>(){}kotlin.Int
+    //   Public signature: /FinalList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: Some
+//   Public signature: /Some|null[0]
+data class Some<T : Any?> {
+  // CHECK:
+  //   Mangled name: Some{}value
+  //   Public signature: /Some.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: T
+    // CHECK JVM_IR:
+    //   Mangled name: Some#<get-value>(){}1:0
+    //   Public signature: /Some.value.<get-value>|3167862337988859752[0]
+    //   Public signature debug description: <get-value>(){}1:0
+    get
+
+  // CHECK:
+  //   Mangled name: Some#<init>(1:0){}
+  //   Public signature: /Some.<init>|-8731461708390519279[0]
+  //   Public signature debug description: <init>(1:0){}
+  constructor(value: T) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#component1(){}1:0
+  //   Public signature: /Some.component1|2393470133763651536[0]
+  //   Public signature debug description: component1(){}1:0
+  operator fun component1(): T
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#copy(1:0){}Some<1:0>
+  //   Public signature: /Some.copy|-5113145417327178592[0]
+  //   Public signature debug description: copy(1:0){}Some<1:0>
+  fun copy(value: T): Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /Some.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#hashCode(){}kotlin.Int
+  //   Public signature: /Some.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#toString(){}kotlin.String
+  //   Public signature: /Some.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  override fun toString(): String
+
+}
+
+// CHECK:
+//   Mangled name: SomeList
+//   Public signature: /SomeList|null[0]
+open class SomeList<T : Any?> : ArrayList<Some<T>>, MyList<T> {
+  // CHECK:
+  //   Mangled name: SomeList#<init>(){}
+  //   Public signature: /SomeList.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#add(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.add|6625667564777432526[0]
+  //   Public signature debug description: add(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(p0: @EnhancedNullability Some<T>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#add(kotlin.Int;Some<1:0>{EnhancedNullability}){}
+  //   Public signature: /SomeList.add|5894306454182126521[0]
+  //   Public signature debug description: add(kotlin.Int;Some<1:0>{EnhancedNullability}){}
+  /* fake */ override fun add(p0: Int, p1: @EnhancedNullability Some<T>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#addAll(kotlin.collections.Collection<out|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.addAll|8841102520309421896[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<out|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: @EnhancedNullability Collection<out @EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#addAll(kotlin.Int;kotlin.collections.Collection<out|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.addAll|-2909110170632963426[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<out|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(p0: Int, p1: @EnhancedNullability Collection<out @EnhancedNullability Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#clear(){}
+  //   Public signature: /SomeList.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /SomeList.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#contains(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.contains|8295010842646223621[0]
+  //   Public signature debug description: contains(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override operator fun contains(p0: @EnhancedNullability Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#containsAll(kotlin.collections.Collection<Some<1:0>?>){}kotlin.Boolean
+  //   Public signature: /SomeList.containsAll|5540597363096413063[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<1:0>?>){}kotlin.Boolean
+  /* fake */ override fun containsAll(p0: Collection<Some<T>?>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#ensureCapacity(kotlin.Int){}
+  //   Public signature: /SomeList.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /SomeList.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(p0: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  //   Public signature: /SomeList.forEach|2335383423896980862[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#get(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  //   Public signature: /SomeList.get|-3046572306153092239[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  /* fake */ override operator fun get(p0: Int): @EnhancedNullability Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#hashCode(){}kotlin.Int
+  //   Public signature: /SomeList.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#indexOf(Some<1:0>{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /SomeList.indexOf|-8100421064396203855[0]
+  //   Public signature debug description: indexOf(Some<1:0>{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun indexOf(p0: @EnhancedNullability Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /SomeList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#iterator(){}kotlin.collections.MutableIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.iterator|-7182993882396126574[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#lastIndexOf(Some<1:0>{EnhancedNullability}){}kotlin.Int
+  //   Public signature: /SomeList.lastIndexOf|1971452683190765047[0]
+  //   Public signature debug description: lastIndexOf(Some<1:0>{EnhancedNullability}){}kotlin.Int
+  /* fake */ override fun lastIndexOf(p0: @EnhancedNullability Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#listIterator(){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.listIterator|6618472108636157083[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.listIterator|-3795321970117438398[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(p0: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.parallelStream|-219890944175584912[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#remove(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.remove|8928393929585423329[0]
+  //   Public signature debug description: remove(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(p0: @EnhancedNullability Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /SomeList.removeAll|-739161647328472857[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(p0: Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeAt(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  //   Public signature: /SomeList.removeAt|1618803614791995920[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  /* fake */ override operator fun removeAt(p0: Int): @EnhancedNullability Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeIf(java.util.function.Predicate<in|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.removeIf|6220917503242239774[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /SomeList.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: SomeList#replaceAll(java.util.function.UnaryOperator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /SomeList.replaceAll|8399474219653830736[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability Some<T>>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#retainAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /SomeList.retainAll|776609542356793092[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(p0: Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#set(kotlin.Int;Some<1:0>{EnhancedNullability}){}Some<1:0>{EnhancedNullability}
+  //   Public signature: /SomeList.set|8710073253272248288[0]
+  //   Public signature debug description: set(kotlin.Int;Some<1:0>{EnhancedNullability}){}Some<1:0>{EnhancedNullability}
+  /* fake */ override operator fun set(p0: Int, p1: @EnhancedNullability Some<T>): @EnhancedNullability Some<T>
+
+  // CHECK:
+  //   Mangled name: SomeList#sort(java.util.Comparator<in|Some<1:0>?>?){}
+  //   Public signature: /SomeList.sort|2356904874097678822[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|Some<1:0>?>?){}
+  /* fake */ override fun sort(p0: Comparator<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  //   Public signature: /SomeList.spliterator|4783176954583244560[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<T>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.stream|-3224874826172988287[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.subList|2652767784817291661[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(p0: Int, p1: Int): @EnhancedNullability MutableList<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /SomeList.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /SomeList.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toString(){}kotlin.String{EnhancedNullability}
+  //   Public signature: /SomeList.toString|7581629773206850948[0]
+  //   Public signature debug description: toString(){}kotlin.String{EnhancedNullability}
+  /* fake */ override fun toString(): @EnhancedNullability String
+
+  // CHECK:
+  //   Mangled name: SomeList#trimToSize(){}
+  //   Public signature: /SomeList.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: SomeList{}size
+  //   Public signature: /SomeList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: SomeList#<get-size>(){}kotlin.Int
+    //   Public signature: /SomeList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: MyList
+//   Public signature: /MyList|null[0]
+interface MyList<T : Any?> : List<Some<T>> {
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#contains(Some<1:0>){}kotlin.Boolean
+  //   Public signature: /MyList.contains|-2920670572443692722[0]
+  //   Public signature debug description: contains(Some<1:0>){}kotlin.Boolean
+  abstract /* fake */ override operator fun contains(element: Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  //   Public signature: /MyList.containsAll|4060484050930787658[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  abstract /* fake */ override fun containsAll(elements: Collection<Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: MyList#forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  //   Public signature: /MyList.forEach|2335383423896980862[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#get(kotlin.Int){}Some<1:0>
+  //   Public signature: /MyList.get|7985278152358407752[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<1:0>
+  abstract /* fake */ override operator fun get(index: Int): Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#indexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /MyList.indexOf|4192413876446876489[0]
+  //   Public signature debug description: indexOf(Some<1:0>){}kotlin.Int
+  abstract /* fake */ override fun indexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /MyList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  abstract /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#iterator(){}kotlin.collections.Iterator<Some<1:0>>
+  //   Public signature: /MyList.iterator|4665016051664097318[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.Iterator<Some<1:0>>
+  abstract /* fake */ override operator fun iterator(): Iterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#lastIndexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /MyList.lastIndexOf|-4798028145670003218[0]
+  //   Public signature debug description: lastIndexOf(Some<1:0>){}kotlin.Int
+  abstract /* fake */ override fun lastIndexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#listIterator(){}kotlin.collections.ListIterator<Some<1:0>>
+  //   Public signature: /MyList.listIterator|-2189861527048971515[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.ListIterator<Some<1:0>>
+  abstract /* fake */ override fun listIterator(): ListIterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#listIterator(kotlin.Int){}kotlin.collections.ListIterator<Some<1:0>>
+  //   Public signature: /MyList.listIterator|-7362392460123500224[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.ListIterator<Some<1:0>>
+  abstract /* fake */ override fun listIterator(index: Int): ListIterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /MyList.parallelStream|-219890944175584912[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  //   Public signature: /MyList.spliterator|4783176954583244560[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<T>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /MyList.stream|-3224874826172988287[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.List<Some<1:0>>
+  //   Public signature: /MyList.subList|-1812789993592301332[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.List<Some<1:0>>
+  abstract /* fake */ override fun subList(fromIndex: Int, toIndex: Int): List<Some<T>>
+
+  // CHECK:
+  //   Mangled name: MyList{}size
+  //   Public signature: /MyList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  abstract /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyList#<get-size>(){}kotlin.Int
+    //   Public signature: /MyList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    abstract /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/MultiList.kt b/compiler/testData/ir/irText/firProblems/MultiList.kt
index 3c525d2d7c7..efaed0aa900 100644
--- a/compiler/testData/ir/irText/firProblems/MultiList.kt
+++ b/compiler/testData/ir/irText/firProblems/MultiList.kt
@@ -1,7 +1,7 @@
 // TARGET_BACKEND: JVM
 // FULL_JDK
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Value parameters in fake overrides generated by K1 and K2 are different
 
 import java.util.ArrayList
diff --git a/compiler/testData/ir/irText/firProblems/MultiList.sig.kt.txt b/compiler/testData/ir/irText/firProblems/MultiList.sig.kt.txt
new file mode 100644
index 00000000000..611605ee32a
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/MultiList.sig.kt.txt
@@ -0,0 +1,631 @@
+// CHECK:
+//   Mangled name: FinalList
+//   Public signature: /FinalList|null[0]
+class FinalList : SomeList<String> {
+  // CHECK:
+  //   Mangled name: FinalList#<init>(){}
+  //   Public signature: /FinalList.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#add(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.add|-8984599614497554904[0]
+  //   Public signature debug description: add(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(element: @EnhancedNullability Some<String>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#add(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}
+  //   Public signature: /FinalList.add|6103522216647968303[0]
+  //   Public signature debug description: add(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}
+  /* fake */ override fun add(index: Int, element: @EnhancedNullability Some<String>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#addAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.addAll|6541999141588936174[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(elements: @EnhancedNullability Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#addAll(kotlin.Int;kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.addAll|-5588261424194102008[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(index: Int, elements: @EnhancedNullability Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#clear(){}
+  //   Public signature: /FinalList.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /FinalList.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#contains(Some<kotlin.String>){}kotlin.Boolean
+  //   Public signature: /FinalList.contains|3306019531315598892[0]
+  //   Public signature debug description: contains(Some<kotlin.String>){}kotlin.Boolean
+  /* fake */ override operator fun contains(element: Some<String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#containsAll(kotlin.collections.Collection<Some<kotlin.String>>){}kotlin.Boolean
+  //   Public signature: /FinalList.containsAll|9064771870641374979[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<kotlin.String>>){}kotlin.Boolean
+  /* fake */ override fun containsAll(elements: Collection<Some<String>>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#ensureCapacity(kotlin.Int){}
+  //   Public signature: /FinalList.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /FinalList.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#forEach(java.util.function.Consumer<in|Some<kotlin.String>?>?){}
+  //   Public signature: /FinalList.forEach|4696325404101105686[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<kotlin.String>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<String>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#get(kotlin.Int){}Some<kotlin.String>
+  //   Public signature: /FinalList.get|5550525129583729061[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<kotlin.String>
+  /* fake */ override operator fun get(index: Int): Some<String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#hashCode(){}kotlin.Int
+  //   Public signature: /FinalList.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#indexOf(Some<kotlin.String>){}kotlin.Int
+  //   Public signature: /FinalList.indexOf|5440857764812757471[0]
+  //   Public signature debug description: indexOf(Some<kotlin.String>){}kotlin.Int
+  /* fake */ override fun indexOf(element: Some<String>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /FinalList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#iterator(){}kotlin.collections.MutableIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.iterator|8558402996726649403[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#lastIndexOf(Some<kotlin.String>){}kotlin.Int
+  //   Public signature: /FinalList.lastIndexOf|-46333449251229155[0]
+  //   Public signature debug description: lastIndexOf(Some<kotlin.String>){}kotlin.Int
+  /* fake */ override fun lastIndexOf(element: Some<String>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#listIterator(){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.listIterator|8523841103372258778[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.listIterator|-1256207950105493440[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(index: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#parallelStream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.parallelStream|8044059385260403489[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#remove(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.remove|1113376285786700007[0]
+  //   Public signature debug description: remove(Some<kotlin.String>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(element: @EnhancedNullability Some<String>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /FinalList.removeAll|8283758866692309032[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(elements: Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeAt(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  //   Public signature: /FinalList.removeAt|720917123303312228[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}Some<kotlin.String>{EnhancedNullability}
+  /* fake */ override fun removeAt(p0: Int): @EnhancedNullability Some<String>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#removeIf(java.util.function.Predicate<in|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /FinalList.removeIf|8503205219992947771[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability Some<String>>): Boolean
+
+  // CHECK:
+  //   Mangled name: FinalList#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /FinalList.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: FinalList#replaceAll(java.util.function.UnaryOperator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /FinalList.replaceAll|-2438443123103518985[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability Some<String>>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#retainAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /FinalList.retainAll|-7465258836476223838[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<Some<kotlin.String>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(elements: Collection<@EnhancedNullability Some<String>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#set(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}Some<kotlin.String>{EnhancedNullability}
+  //   Public signature: /FinalList.set|-2357920566185129420[0]
+  //   Public signature debug description: set(kotlin.Int;Some<kotlin.String>{EnhancedNullability}){}Some<kotlin.String>{EnhancedNullability}
+  /* fake */ override operator fun set(index: Int, element: @EnhancedNullability Some<String>): @EnhancedNullability Some<String>
+
+  // CHECK:
+  //   Mangled name: FinalList#sort(java.util.Comparator<in|Some<kotlin.String>?>?){}
+  //   Public signature: /FinalList.sort|788869724005081799[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|Some<kotlin.String>?>?){}
+  /* fake */ override fun sort(p0: Comparator<in Some<String>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#spliterator(){}java.util.Spliterator<Some<kotlin.String>?>{EnhancedNullability}
+  //   Public signature: /FinalList.spliterator|1821695929438060632[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<kotlin.String>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<String>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#stream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.stream|904818870795057646[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /FinalList.subList|-454918096443177489[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<kotlin.String>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(fromIndex: Int, toIndex: Int): @EnhancedNullability MutableList<@EnhancedNullability Some<String>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /FinalList.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /FinalList.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: FinalList#toString(){}kotlin.String
+  //   Public signature: /FinalList.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: FinalList#trimToSize(){}
+  //   Public signature: /FinalList.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: FinalList{}size
+  //   Public signature: /FinalList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: FinalList#<get-size>(){}kotlin.Int
+    //   Public signature: /FinalList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: Some
+//   Public signature: /Some|null[0]
+data class Some<T : Any?> {
+  // CHECK:
+  //   Mangled name: Some{}value
+  //   Public signature: /Some.value|1987073854177347439[0]
+  //   Public signature debug description: {}value
+  val value: T
+    // CHECK JVM_IR:
+    //   Mangled name: Some#<get-value>(){}1:0
+    //   Public signature: /Some.value.<get-value>|3167862337988859752[0]
+    //   Public signature debug description: <get-value>(){}1:0
+    get
+
+  // CHECK:
+  //   Mangled name: Some#<init>(1:0){}
+  //   Public signature: /Some.<init>|-8731461708390519279[0]
+  //   Public signature debug description: <init>(1:0){}
+  constructor(value: T) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#component1(){}1:0
+  //   Public signature: /Some.component1|2393470133763651536[0]
+  //   Public signature debug description: component1(){}1:0
+  operator fun component1(): T
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#copy(1:0){}Some<1:0>
+  //   Public signature: /Some.copy|-5113145417327178592[0]
+  //   Public signature debug description: copy(1:0){}Some<1:0>
+  fun copy(value: T): Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /Some.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#hashCode(){}kotlin.Int
+  //   Public signature: /Some.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: Some#toString(){}kotlin.String
+  //   Public signature: /Some.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  override fun toString(): String
+
+}
+
+// CHECK:
+//   Mangled name: SomeList
+//   Public signature: /SomeList|null[0]
+open class SomeList<T : Any?> : ArrayList<Some<T>>, MyList<T> {
+  // CHECK:
+  //   Mangled name: SomeList#<init>(){}
+  //   Public signature: /SomeList.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#add(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.add|6625667564777432526[0]
+  //   Public signature debug description: add(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun add(element: @EnhancedNullability Some<T>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#add(kotlin.Int;Some<1:0>{EnhancedNullability}){}
+  //   Public signature: /SomeList.add|5894306454182126521[0]
+  //   Public signature debug description: add(kotlin.Int;Some<1:0>{EnhancedNullability}){}
+  /* fake */ override fun add(index: Int, element: @EnhancedNullability Some<T>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#addAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.addAll|7215816488194227173[0]
+  //   Public signature debug description: addAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(elements: @EnhancedNullability Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#addAll(kotlin.Int;kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.addAll|-8771596815386290321[0]
+  //   Public signature debug description: addAll(kotlin.Int;kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun addAll(index: Int, elements: @EnhancedNullability Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#clear(){}
+  //   Public signature: /SomeList.clear|-6446868449915108923[0]
+  //   Public signature debug description: clear(){}
+  /* fake */ override fun clear(): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#clone(){}kotlin.Any{EnhancedNullability}
+  //   Public signature: /SomeList.clone|178802004086941196[0]
+  //   Public signature debug description: clone(){}kotlin.Any{EnhancedNullability}
+  /* fake */ override fun clone(): @EnhancedNullability Any
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#contains(Some<1:0>){}kotlin.Boolean
+  //   Public signature: /SomeList.contains|-2920670572443692722[0]
+  //   Public signature debug description: contains(Some<1:0>){}kotlin.Boolean
+  /* fake */ override operator fun contains(element: Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  //   Public signature: /SomeList.containsAll|4060484050930787658[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  /* fake */ override fun containsAll(elements: Collection<Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#ensureCapacity(kotlin.Int){}
+  //   Public signature: /SomeList.ensureCapacity|-7913402150632352615[0]
+  //   Public signature debug description: ensureCapacity(kotlin.Int){}
+  /* fake */ override fun ensureCapacity(p0: Int): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /SomeList.equals|722809408929142791[0]
+  //   Public signature debug description: equals(kotlin.Any?){}kotlin.Boolean
+  /* fake */ override operator fun equals(other: Any?): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  //   Public signature: /SomeList.forEach|2335383423896980862[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#get(kotlin.Int){}Some<1:0>
+  //   Public signature: /SomeList.get|7985278152358407752[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<1:0>
+  /* fake */ override operator fun get(index: Int): Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#hashCode(){}kotlin.Int
+  //   Public signature: /SomeList.hashCode|-8048879360829830756[0]
+  //   Public signature debug description: hashCode(){}kotlin.Int
+  /* fake */ override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#indexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /SomeList.indexOf|4192413876446876489[0]
+  //   Public signature debug description: indexOf(Some<1:0>){}kotlin.Int
+  /* fake */ override fun indexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /SomeList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#iterator(){}kotlin.collections.MutableIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.iterator|-7182993882396126574[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.MutableIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override operator fun iterator(): @EnhancedNullability MutableIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#lastIndexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /SomeList.lastIndexOf|-4798028145670003218[0]
+  //   Public signature debug description: lastIndexOf(Some<1:0>){}kotlin.Int
+  /* fake */ override fun lastIndexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#listIterator(){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.listIterator|6618472108636157083[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.listIterator|-3795321970117438398[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.MutableListIterator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun listIterator(index: Int): @EnhancedNullability MutableListIterator<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.parallelStream|-219890944175584912[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#remove(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.remove|8928393929585423329[0]
+  //   Public signature debug description: remove(Some<1:0>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun remove(element: @EnhancedNullability Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /SomeList.removeAll|-739161647328472857[0]
+  //   Public signature debug description: removeAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun removeAll(elements: Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeAt(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  //   Public signature: /SomeList.removeAt|1618803614791995920[0]
+  //   Public signature debug description: removeAt(kotlin.Int){}Some<1:0>{EnhancedNullability}
+  /* fake */ override fun removeAt(p0: Int): @EnhancedNullability Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#removeIf(java.util.function.Predicate<in|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  //   Public signature: /SomeList.removeIf|6220917503242239774[0]
+  //   Public signature debug description: removeIf(java.util.function.Predicate<in|Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}kotlin.Boolean
+  /* fake */ override fun removeIf(p0: @EnhancedNullability Predicate<in @EnhancedNullability Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: SomeList#removeRange(kotlin.Int;kotlin.Int){}
+  //   Public signature: /SomeList.removeRange|7632320944993890593[0]
+  //   Public signature debug description: removeRange(kotlin.Int;kotlin.Int){}
+  protected_and_package /* fake */ override fun removeRange(p0: Int, p1: Int): Unit
+
+  // CHECK:
+  //   Mangled name: SomeList#replaceAll(java.util.function.UnaryOperator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}
+  //   Public signature: /SomeList.replaceAll|8399474219653830736[0]
+  //   Public signature debug description: replaceAll(java.util.function.UnaryOperator<Some<1:0>{EnhancedNullability}>{EnhancedNullability}){}
+  /* fake */ override fun replaceAll(p0: @EnhancedNullability UnaryOperator<@EnhancedNullability Some<T>>): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#retainAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  //   Public signature: /SomeList.retainAll|776609542356793092[0]
+  //   Public signature debug description: retainAll(kotlin.collections.Collection<Some<1:0>{EnhancedNullability}>){}kotlin.Boolean
+  /* fake */ override fun retainAll(elements: Collection<@EnhancedNullability Some<T>>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#set(kotlin.Int;Some<1:0>{EnhancedNullability}){}Some<1:0>{EnhancedNullability}
+  //   Public signature: /SomeList.set|8710073253272248288[0]
+  //   Public signature debug description: set(kotlin.Int;Some<1:0>{EnhancedNullability}){}Some<1:0>{EnhancedNullability}
+  /* fake */ override operator fun set(index: Int, element: @EnhancedNullability Some<T>): @EnhancedNullability Some<T>
+
+  // CHECK:
+  //   Mangled name: SomeList#sort(java.util.Comparator<in|Some<1:0>?>?){}
+  //   Public signature: /SomeList.sort|2356904874097678822[0]
+  //   Public signature debug description: sort(java.util.Comparator<in|Some<1:0>?>?){}
+  /* fake */ override fun sort(p0: Comparator<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  //   Public signature: /SomeList.spliterator|4783176954583244560[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<T>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.stream|-3224874826172988287[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /SomeList.subList|2652767784817291661[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.MutableList<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun subList(fromIndex: Int, toIndex: Int): @EnhancedNullability MutableList<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toArray(){}kotlin.Array<out|kotlin.Any?>?
+  //   Public signature: /SomeList.toArray|-8468800257910341540[0]
+  //   Public signature debug description: toArray(){}kotlin.Array<out|kotlin.Any?>?
+  /* fake */ override fun toArray(): Array<out Any?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  //   Public signature: /SomeList.toArray|-7248906015406159030[0]
+  //   Public signature debug description: toArray(kotlin.Array<out|0:0?>?){0§<kotlin.Any?>}kotlin.Array<out|0:0?>?
+  /* fake */ override fun <T : Any?> toArray(p0: Array<out T?>?): Array<out T?>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: SomeList#toString(){}kotlin.String
+  //   Public signature: /SomeList.toString|6958853723545266802[0]
+  //   Public signature debug description: toString(){}kotlin.String
+  /* fake */ override fun toString(): String
+
+  // CHECK:
+  //   Mangled name: SomeList#trimToSize(){}
+  //   Public signature: /SomeList.trimToSize|-5937642362792008740[0]
+  //   Public signature debug description: trimToSize(){}
+  /* fake */ override fun trimToSize(): Unit
+
+  // CHECK:
+  //   Mangled name: SomeList{}size
+  //   Public signature: /SomeList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: SomeList#<get-size>(){}kotlin.Int
+    //   Public signature: /SomeList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    /* fake */ override get(): Int
+
+}
+
+// CHECK:
+//   Mangled name: MyList
+//   Public signature: /MyList|null[0]
+interface MyList<T : Any?> : List<Some<T>> {
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#contains(Some<1:0>){}kotlin.Boolean
+  //   Public signature: /MyList.contains|-2920670572443692722[0]
+  //   Public signature debug description: contains(Some<1:0>){}kotlin.Boolean
+  abstract /* fake */ override operator fun contains(element: Some<T>): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  //   Public signature: /MyList.containsAll|4060484050930787658[0]
+  //   Public signature debug description: containsAll(kotlin.collections.Collection<Some<1:0>>){}kotlin.Boolean
+  abstract /* fake */ override fun containsAll(elements: Collection<Some<T>>): Boolean
+
+  // CHECK:
+  //   Mangled name: MyList#forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  //   Public signature: /MyList.forEach|2335383423896980862[0]
+  //   Public signature debug description: forEach(java.util.function.Consumer<in|Some<1:0>?>?){}
+  /* fake */ override fun forEach(p0: Consumer<in Some<T>?>?): Unit
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#get(kotlin.Int){}Some<1:0>
+  //   Public signature: /MyList.get|7985278152358407752[0]
+  //   Public signature debug description: get(kotlin.Int){}Some<1:0>
+  abstract /* fake */ override operator fun get(index: Int): Some<T>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#indexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /MyList.indexOf|4192413876446876489[0]
+  //   Public signature debug description: indexOf(Some<1:0>){}kotlin.Int
+  abstract /* fake */ override fun indexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#isEmpty(){}kotlin.Boolean
+  //   Public signature: /MyList.isEmpty|-626562167393617703[0]
+  //   Public signature debug description: isEmpty(){}kotlin.Boolean
+  abstract /* fake */ override fun isEmpty(): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#iterator(){}kotlin.collections.Iterator<Some<1:0>>
+  //   Public signature: /MyList.iterator|4665016051664097318[0]
+  //   Public signature debug description: iterator(){}kotlin.collections.Iterator<Some<1:0>>
+  abstract /* fake */ override operator fun iterator(): Iterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#lastIndexOf(Some<1:0>){}kotlin.Int
+  //   Public signature: /MyList.lastIndexOf|-4798028145670003218[0]
+  //   Public signature debug description: lastIndexOf(Some<1:0>){}kotlin.Int
+  abstract /* fake */ override fun lastIndexOf(element: Some<T>): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#listIterator(){}kotlin.collections.ListIterator<Some<1:0>>
+  //   Public signature: /MyList.listIterator|-2189861527048971515[0]
+  //   Public signature debug description: listIterator(){}kotlin.collections.ListIterator<Some<1:0>>
+  abstract /* fake */ override fun listIterator(): ListIterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#listIterator(kotlin.Int){}kotlin.collections.ListIterator<Some<1:0>>
+  //   Public signature: /MyList.listIterator|-7362392460123500224[0]
+  //   Public signature debug description: listIterator(kotlin.Int){}kotlin.collections.ListIterator<Some<1:0>>
+  abstract /* fake */ override fun listIterator(index: Int): ListIterator<Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /MyList.parallelStream|-219890944175584912[0]
+  //   Public signature debug description: parallelStream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun parallelStream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  //   Public signature: /MyList.spliterator|4783176954583244560[0]
+  //   Public signature debug description: spliterator(){}java.util.Spliterator<Some<1:0>?>{EnhancedNullability}
+  /* fake */ override fun spliterator(): @EnhancedNullability Spliterator<Some<T>?>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  //   Public signature: /MyList.stream|-3224874826172988287[0]
+  //   Public signature debug description: stream(){}java.util.stream.Stream<Some<1:0>{EnhancedNullability}>{EnhancedNullability}
+  /* fake */ override fun stream(): @EnhancedNullability Stream<@EnhancedNullability Some<T>>
+
+  // CHECK JVM_IR:
+  //   Mangled name: MyList#subList(kotlin.Int;kotlin.Int){}kotlin.collections.List<Some<1:0>>
+  //   Public signature: /MyList.subList|-1812789993592301332[0]
+  //   Public signature debug description: subList(kotlin.Int;kotlin.Int){}kotlin.collections.List<Some<1:0>>
+  abstract /* fake */ override fun subList(fromIndex: Int, toIndex: Int): List<Some<T>>
+
+  // CHECK:
+  //   Mangled name: MyList{}size
+  //   Public signature: /MyList.size|-6253659984320132064[0]
+  //   Public signature debug description: {}size
+  abstract /* fake */ override val size: Int
+    // CHECK JVM_IR:
+    //   Mangled name: MyList#<get-size>(){}kotlin.Int
+    //   Public signature: /MyList.size.<get-size>|-3941649985161900780[0]
+    //   Public signature debug description: <get-size>(){}kotlin.Int
+    abstract /* fake */ override get(): Int
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.kt b/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.kt
index af926d86178..47899ade010 100644
--- a/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.kt
+++ b/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.kt
@@ -1,6 +1,5 @@
 // FIR_IDENTICAL
 // WITH_REFLECT
-// SKIP_SIGNATURE_DUMP
 
 var topLevelInt: Int = 0
 
diff --git a/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.sig.kt.txt b/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.sig.kt.txt
new file mode 100644
index 00000000000..c97c5d4b483
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/delegatedSetterShouldBeSpecialized.sig.kt.txt
@@ -0,0 +1,51 @@
+// CHECK:
+//   Mangled name: {}topLevelInt
+//   Public signature: /topLevelInt|-195133861434444271[0]
+//   Public signature debug description: {}topLevelInt
+var topLevelInt: Int
+  // CHECK JVM_IR:
+  //   Mangled name: #<get-topLevelInt>(){}kotlin.Int
+  //   Public signature: /topLevelInt.<get-topLevelInt>|-3701121633294691078[0]
+  //   Public signature debug description: <get-topLevelInt>(){}kotlin.Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-topLevelInt>(){}
+  //   Public signature: /topLevelInt.<get-topLevelInt>|-8146374746978443891[0]
+  //   Public signature debug description: <get-topLevelInt>(){}
+  get
+  // CHECK:
+  //   Mangled name: #<set-topLevelInt>(kotlin.Int){}
+  //   Public signature: /topLevelInt.<set-topLevelInt>|-6405619490912020761[0]
+  //   Public signature debug description: <set-topLevelInt>(kotlin.Int){}
+  set
+
+// CHECK:
+//   Mangled name: MyClass
+//   Public signature: /MyClass|null[0]
+class MyClass {
+  // CHECK:
+  //   Mangled name: MyClass{}delegatedToTopLevel
+  //   Public signature: /MyClass.delegatedToTopLevel|469634053427021861[0]
+  //   Public signature debug description: {}delegatedToTopLevel
+  var delegatedToTopLevel: Int /* by */
+    // CHECK JVM_IR:
+    //   Mangled name: MyClass#<get-delegatedToTopLevel>(){}kotlin.Int
+    //   Public signature: /MyClass.delegatedToTopLevel.<get-delegatedToTopLevel>|348815270705246892[0]
+    //   Public signature debug description: <get-delegatedToTopLevel>(){}kotlin.Int
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: MyClass#<get-delegatedToTopLevel>(){}
+    //   Public signature: /MyClass.delegatedToTopLevel.<get-delegatedToTopLevel>|-11763650120820505[0]
+    //   Public signature debug description: <get-delegatedToTopLevel>(){}
+    get(): Int
+    // CHECK:
+    //   Mangled name: MyClass#<set-delegatedToTopLevel>(kotlin.Int){}
+    //   Public signature: /MyClass.delegatedToTopLevel.<set-delegatedToTopLevel>|-8149849966678796267[0]
+    //   Public signature debug description: <set-delegatedToTopLevel>(kotlin.Int){}
+    set(<set-?>: Int): Unit
+
+  // CHECK:
+  //   Mangled name: MyClass#<init>(){}
+  //   Public signature: /MyClass.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
diff --git a/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.kt b/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.kt
index c1e0cc3b9b0..2240067f146 100644
--- a/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.kt
+++ b/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.kt
@@ -1,7 +1,6 @@
 // WITH_STDLIB
 // TARGET_BACKEND: JVM
 // ISSUE: KT-61443
-// SKIP_SIGNATURE_DUMP
 
 fun foo() = DelegatedB()()
 
diff --git a/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.sig.kt.txt b/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.sig.kt.txt
new file mode 100644
index 00000000000..e2f04dc870f
--- /dev/null
+++ b/compiler/testData/ir/irText/firProblems/substitutionOverrideWithDelegate.sig.kt.txt
@@ -0,0 +1,95 @@
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C<out T : Any?> : B<T> {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: C#invoke(){}
+  //   Public signature: /C.invoke|-4663091332620260873[0]
+  //   Public signature debug description: invoke(){}
+  /* fake */ override operator fun invoke(): Unit
+
+  // CHECK:
+  //   Mangled name: C#invoke(kotlin.String){}
+  //   Public signature: /C.invoke|-8167496601803439348[0]
+  //   Public signature debug description: invoke(kotlin.String){}
+  /* fake */ override operator fun invoke(value: String): Unit
+
+}
+
+// CHECK:
+//   Mangled name: DelegatedB
+//   Public signature: /DelegatedB|null[0]
+open class DelegatedB : B<String> {
+  // CHECK:
+  //   Mangled name: DelegatedB#<init>(){}
+  //   Public signature: /DelegatedB.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: DelegatedB#invoke(){}
+  //   Public signature: /DelegatedB.invoke|-4663091332620260873[0]
+  //   Public signature debug description: invoke(){}
+  override operator fun invoke(): Unit
+
+  // CHECK:
+  //   Mangled name: DelegatedB#invoke(kotlin.String){}
+  //   Public signature: /DelegatedB.invoke|-8167496601803439348[0]
+  //   Public signature debug description: invoke(kotlin.String){}
+  override operator fun invoke(value: String): Unit
+
+}
+
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+interface A {
+  // CHECK:
+  //   Mangled name: A#invoke(){}
+  //   Public signature: /A.invoke|-4663091332620260873[0]
+  //   Public signature debug description: invoke(){}
+  operator fun invoke(): Unit
+
+  // CHECK:
+  //   Mangled name: A#invoke(kotlin.String){}
+  //   Public signature: /A.invoke|-8167496601803439348[0]
+  //   Public signature debug description: invoke(kotlin.String){}
+  operator fun invoke(value: String): Unit
+
+}
+
+// CHECK:
+//   Mangled name: B
+//   Public signature: /B|null[0]
+interface B<out T : Any?> : A {
+  // CHECK:
+  //   Mangled name: B#invoke(){}
+  //   Public signature: /B.invoke|-4663091332620260873[0]
+  //   Public signature debug description: invoke(){}
+  /* fake */ override operator fun invoke(): Unit
+
+  // CHECK:
+  //   Mangled name: B#invoke(kotlin.String){}
+  //   Public signature: /B.invoke|-8167496601803439348[0]
+  //   Public signature debug description: invoke(kotlin.String){}
+  /* fake */ override operator fun invoke(value: String): Unit
+
+}
+
+// CHECK:
+//   Mangled name: #bar@A(kotlin.String){}
+//   Public signature: /bar|-6811345410593435832[0]
+//   Public signature debug description: bar@A(kotlin.String){}
+fun A.bar(value: String): Unit
+
+// CHECK:
+//   Mangled name: #foo(){}
+//   Public signature: /foo|-1041209573719867811[0]
+//   Public signature debug description: foo(){}
+fun foo(): Unit
diff --git a/compiler/testData/ir/irText/types/rawTypeInSignature.fir.sig.kt.txt b/compiler/testData/ir/irText/types/rawTypeInSignature.fir.sig.kt.txt
new file mode 100644
index 00000000000..0d4bfd87bc9
--- /dev/null
+++ b/compiler/testData/ir/irText/types/rawTypeInSignature.fir.sig.kt.txt
@@ -0,0 +1,113 @@
+// CHECK:
+//   Mangled name: GenericIn
+//   Public signature: /GenericIn|null[0]
+class GenericIn<in T : Number> {
+  // CHECK:
+  //   Mangled name: GenericIn#<init>(){}
+  //   Public signature: /GenericIn.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: GenericInv
+//   Public signature: /GenericInv|null[0]
+class GenericInv<T : Number> {
+  // CHECK:
+  //   Mangled name: GenericInv#<init>(){}
+  //   Public signature: /GenericInv.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: GenericOut
+//   Public signature: /GenericOut|null[0]
+class GenericOut<out T : Number> {
+  // CHECK:
+  //   Mangled name: GenericOut#<init>(){}
+  //   Public signature: /GenericOut.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: KRaw
+//   Public signature: /KRaw|null[0]
+class KRaw : JRaw {
+  // CHECK:
+  //   Mangled name: KRaw#<init>(JRaw){}
+  //   Public signature: /KRaw.<init>|-9018601651041838198[0]
+  //   Public signature debug description: <init>(JRaw){}
+  constructor(j: JRaw) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericIn(){}GenericIn<kotlin.Number>
+  //   Public signature: /KRaw.returnsRawGenericIn|-5257730602735068314[0]
+  //   Public signature debug description: returnsRawGenericIn(){}GenericIn<kotlin.Number>
+  override fun returnsRawGenericIn(): GenericIn<Number>
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericInv(){}GenericInv<kotlin.Number>
+  //   Public signature: /KRaw.returnsRawGenericInv|8692532014882222304[0]
+  //   Public signature debug description: returnsRawGenericInv(){}GenericInv<kotlin.Number>
+  override fun returnsRawGenericInv(): GenericInv<Number>
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericOut(){}GenericOut<kotlin.Number>
+  //   Public signature: /KRaw.returnsRawGenericOut|6207427576909418451[0]
+  //   Public signature debug description: returnsRawGenericOut(){}GenericOut<kotlin.Number>
+  override fun returnsRawGenericOut(): GenericOut<Number>
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawList(){}kotlin.collections.MutableList<kotlin.Any?>
+  //   Public signature: /KRaw.returnsRawList|1437515324872981008[0]
+  //   Public signature debug description: returnsRawList(){}kotlin.collections.MutableList<kotlin.Any?>
+  override fun returnsRawList(): MutableList<Any?>
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericIn(GenericIn<kotlin.Number>){}
+  //   Public signature: /KRaw.takesRawGenericIn|-2236627248339978838[0]
+  //   Public signature debug description: takesRawGenericIn(GenericIn<kotlin.Number>){}
+  override fun takesRawGenericIn(g: GenericIn<Number>): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericInv(GenericInv<kotlin.Number>){}
+  //   Public signature: /KRaw.takesRawGenericInv|2853148690189632857[0]
+  //   Public signature debug description: takesRawGenericInv(GenericInv<kotlin.Number>){}
+  override fun takesRawGenericInv(g: GenericInv<Number>): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericOut(GenericOut<kotlin.Number>){}
+  //   Public signature: /KRaw.takesRawGenericOut|-5773421374790089688[0]
+  //   Public signature debug description: takesRawGenericOut(GenericOut<kotlin.Number>){}
+  override fun takesRawGenericOut(g: GenericOut<Number>): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawList(kotlin.collections.MutableList<kotlin.Any?>){}
+  //   Public signature: /KRaw.takesRawList|1781281561350478530[0]
+  //   Public signature debug description: takesRawList(kotlin.collections.MutableList<kotlin.Any?>){}
+  override fun takesRawList(list: MutableList<Any?>): Unit
+
+}
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericIn(JRaw){}GenericIn<kotlin.Number>
+//   Public signature: /testReturnsRawGenericIn|8366804840057905100[0]
+//   Public signature debug description: testReturnsRawGenericIn(JRaw){}GenericIn<kotlin.Number>
+fun testReturnsRawGenericIn(j: JRaw): GenericIn<Number>
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericInv(JRaw){}GenericInv<kotlin.Number>
+//   Public signature: /testReturnsRawGenericInv|5130359618608443436[0]
+//   Public signature debug description: testReturnsRawGenericInv(JRaw){}GenericInv<kotlin.Number>
+fun testReturnsRawGenericInv(j: JRaw): GenericInv<Number>
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericOut(JRaw){}GenericOut<kotlin.Number>
+//   Public signature: /testReturnsRawGenericOut|-62256167970682834[0]
+//   Public signature debug description: testReturnsRawGenericOut(JRaw){}GenericOut<kotlin.Number>
+fun testReturnsRawGenericOut(j: JRaw): GenericOut<Number>
diff --git a/compiler/testData/ir/irText/types/rawTypeInSignature.kt b/compiler/testData/ir/irText/types/rawTypeInSignature.kt
index 0c45e50b33f..805826a44a7 100644
--- a/compiler/testData/ir/irText/types/rawTypeInSignature.kt
+++ b/compiler/testData/ir/irText/types/rawTypeInSignature.kt
@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 
-// SKIP_SIGNATURE_DUMP
+// SEPARATE_SIGNATURE_DUMP_FOR_K2
 // ^ Nullability is different for raw types in K1 and K2
 
 // FILE: rawTypeInSignature.kt
diff --git a/compiler/testData/ir/irText/types/rawTypeInSignature.sig.kt.txt b/compiler/testData/ir/irText/types/rawTypeInSignature.sig.kt.txt
new file mode 100644
index 00000000000..bb8f1b7796b
--- /dev/null
+++ b/compiler/testData/ir/irText/types/rawTypeInSignature.sig.kt.txt
@@ -0,0 +1,113 @@
+// CHECK:
+//   Mangled name: GenericIn
+//   Public signature: /GenericIn|null[0]
+class GenericIn<in T : Number> {
+  // CHECK:
+  //   Mangled name: GenericIn#<init>(){}
+  //   Public signature: /GenericIn.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: GenericInv
+//   Public signature: /GenericInv|null[0]
+class GenericInv<T : Number> {
+  // CHECK:
+  //   Mangled name: GenericInv#<init>(){}
+  //   Public signature: /GenericInv.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: GenericOut
+//   Public signature: /GenericOut|null[0]
+class GenericOut<out T : Number> {
+  // CHECK:
+  //   Mangled name: GenericOut#<init>(){}
+  //   Public signature: /GenericOut.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+}
+
+// CHECK:
+//   Mangled name: KRaw
+//   Public signature: /KRaw|null[0]
+class KRaw : JRaw {
+  // CHECK:
+  //   Mangled name: KRaw#<init>(JRaw){}
+  //   Public signature: /KRaw.<init>|-9018601651041838198[0]
+  //   Public signature debug description: <init>(JRaw){}
+  constructor(j: JRaw) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericIn(){}GenericIn<kotlin.Number>?
+  //   Public signature: /KRaw.returnsRawGenericIn|2316913195849838102[0]
+  //   Public signature debug description: returnsRawGenericIn(){}GenericIn<kotlin.Number>?
+  override fun returnsRawGenericIn(): GenericIn<Number>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericInv(){}GenericInv<kotlin.Number>?
+  //   Public signature: /KRaw.returnsRawGenericInv|5636795900726870653[0]
+  //   Public signature debug description: returnsRawGenericInv(){}GenericInv<kotlin.Number>?
+  override fun returnsRawGenericInv(): GenericInv<Number>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawGenericOut(){}GenericOut<kotlin.Number>?
+  //   Public signature: /KRaw.returnsRawGenericOut|-2900081068433007254[0]
+  //   Public signature debug description: returnsRawGenericOut(){}GenericOut<kotlin.Number>?
+  override fun returnsRawGenericOut(): GenericOut<Number>?
+
+  // CHECK JVM_IR:
+  //   Mangled name: KRaw#returnsRawList(){}kotlin.collections.MutableList<kotlin.Any?>?
+  //   Public signature: /KRaw.returnsRawList|-6457317888193014337[0]
+  //   Public signature debug description: returnsRawList(){}kotlin.collections.MutableList<kotlin.Any?>?
+  override fun returnsRawList(): MutableList<Any?>?
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericIn(GenericIn<kotlin.Number>?){}
+  //   Public signature: /KRaw.takesRawGenericIn|7111924639802650374[0]
+  //   Public signature debug description: takesRawGenericIn(GenericIn<kotlin.Number>?){}
+  override fun takesRawGenericIn(g: GenericIn<Number>?): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericInv(GenericInv<kotlin.Number>?){}
+  //   Public signature: /KRaw.takesRawGenericInv|-7043210737732405875[0]
+  //   Public signature debug description: takesRawGenericInv(GenericInv<kotlin.Number>?){}
+  override fun takesRawGenericInv(g: GenericInv<Number>?): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawGenericOut(GenericOut<kotlin.Number>?){}
+  //   Public signature: /KRaw.takesRawGenericOut|-6937861296436003286[0]
+  //   Public signature debug description: takesRawGenericOut(GenericOut<kotlin.Number>?){}
+  override fun takesRawGenericOut(g: GenericOut<Number>?): Unit
+
+  // CHECK:
+  //   Mangled name: KRaw#takesRawList(kotlin.collections.MutableList<kotlin.Any?>?){}
+  //   Public signature: /KRaw.takesRawList|-1231162314770327388[0]
+  //   Public signature debug description: takesRawList(kotlin.collections.MutableList<kotlin.Any?>?){}
+  override fun takesRawList(list: MutableList<Any?>?): Unit
+
+}
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericIn(JRaw){}GenericIn<kotlin.Number>?
+//   Public signature: /testReturnsRawGenericIn|-306193371031556622[0]
+//   Public signature debug description: testReturnsRawGenericIn(JRaw){}GenericIn<kotlin.Number>?
+fun testReturnsRawGenericIn(j: JRaw): GenericIn<Number>?
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericInv(JRaw){}GenericInv<kotlin.Number>?
+//   Public signature: /testReturnsRawGenericInv|6592680998914081032[0]
+//   Public signature debug description: testReturnsRawGenericInv(JRaw){}GenericInv<kotlin.Number>?
+fun testReturnsRawGenericInv(j: JRaw): GenericInv<Number>?
+
+// CHECK JVM_IR:
+//   Mangled name: #testReturnsRawGenericOut(JRaw){}GenericOut<kotlin.Number>?
+//   Public signature: /testReturnsRawGenericOut|6146268409340591089[0]
+//   Public signature debug description: testReturnsRawGenericOut(JRaw){}GenericOut<kotlin.Number>?
+fun testReturnsRawGenericOut(j: JRaw): GenericOut<Number>?
diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/handlers/IrMangledNameAndSignatureDumpHandler.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/handlers/IrMangledNameAndSignatureDumpHandler.kt
index 70f77b0e1ad..fcb4cf69de5 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/handlers/IrMangledNameAndSignatureDumpHandler.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/handlers/IrMangledNameAndSignatureDumpHandler.kt
@@ -32,7 +32,8 @@ import org.jetbrains.kotlin.test.backend.codegenSuppressionChecker
 import org.jetbrains.kotlin.test.backend.ir.IrBackendInput
 import org.jetbrains.kotlin.test.directives.CodegenTestDirectives.DUMP_SIGNATURES
 import org.jetbrains.kotlin.test.directives.CodegenTestDirectives.MUTE_SIGNATURE_COMPARISON_K2
-import org.jetbrains.kotlin.test.directives.CodegenTestDirectives.SKIP_SIGNATURE_DUMP
+import org.jetbrains.kotlin.test.directives.CodegenTestDirectives.SEPARATE_SIGNATURE_DUMP_FOR_K2
+import org.jetbrains.kotlin.test.directives.FirDiagnosticsDirectives.FIR_IDENTICAL
 import org.jetbrains.kotlin.test.model.BackendKind
 import org.jetbrains.kotlin.test.model.FrontendKinds
 import org.jetbrains.kotlin.test.model.TestModule
@@ -52,11 +53,14 @@ private const val CHECK_MARKER = "// CHECK"
  * Prints a mangled name and an [IdSignature] for each declaration and compares the result with
  * an expected output in a `*.sig.kt.txt` file located next to the test file.
  *
- * Can be enabled by specifying the [DUMP_SIGNATURES] directive, and disabled with the [SKIP_SIGNATURE_DUMP] test directive.
+ * Can be enabled by specifying the [DUMP_SIGNATURES] directive.
  *
  * Other useful directives:
  * - [MUTE_SIGNATURE_COMPARISON_K2] can be used for muting the comparison result on the K2 frontend. The comparison will
  *   still be performed, and if it succeeds, the test will fail with a message reminding you to unmute it.
+ * - [SEPARATE_SIGNATURE_DUMP_FOR_K2] acts like the inverse of [FIR_IDENTICAL], but it only affects signature dumps. Usually, signature
+ *   dumps generated from K1 and K2 must be identical, but sometimes there are reasons to use separate dumps — in that case specify this
+ *   directive.
  *
  * Since mangled names and signatures may be different depending on the backend, in order to reduce the number
  * of expectation files, this handler uses `// CHECK` blocks to compare the dump with an expectation in a smarter way than
@@ -101,13 +105,23 @@ class IrMangledNameAndSignatureDumpHandler(
         const val DUMP_EXTENSION = "sig.kt.txt"
     }
 
+    private fun computeDumpExtension(): String {
+        return if (testServices.defaultsProvider.defaultFrontend == FrontendKinds.ClassicFrontend ||
+            SEPARATE_SIGNATURE_DUMP_FOR_K2 !in testServices.moduleStructure.allDirectives
+        ) {
+            DUMP_EXTENSION
+        } else {
+            "fir.$DUMP_EXTENSION"
+        }
+    }
+
     private val dumper = MultiModuleInfoDumper("// MODULE: %s")
 
     /**
      * The file that stores the expected signatures of the test file.
      */
     private val expectedFile: File by lazy {
-        testServices.moduleStructure.originalTestDataFiles.first().withExtension(DUMP_EXTENSION)
+        testServices.moduleStructure.originalTestDataFiles.first().withExtension(computeDumpExtension())
     }
 
     /**
@@ -124,7 +138,7 @@ class IrMangledNameAndSignatureDumpHandler(
     }
 
     override fun processModule(module: TestModule, info: IrBackendInput) {
-        if (DUMP_SIGNATURES !in module.directives || SKIP_SIGNATURE_DUMP in module.directives) return
+        if (DUMP_SIGNATURES !in module.directives) return
 
         dumpModuleKotlinLike(
             module,
diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
index 5a4e8240de9..76aa8134d1a 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
@@ -164,8 +164,13 @@ object CodegenTestDirectives : SimpleDirectivesContainer() {
         """.trimIndent()
     )
 
-    val SKIP_SIGNATURE_DUMP by directive(
-        description = "Disables dumping signatures and mangled names of declarations to the ${IrMangledNameAndSignatureDumpHandler.DUMP_EXTENSION} file"
+    val SEPARATE_SIGNATURE_DUMP_FOR_K2 by directive(
+        description = """
+            Usually the signature dump must not differ between K1 and K2.
+            There are rare cases, however, when there is legitimate difference (for example, if the set of fake overrides is different).
+            Please always document the usage of this directive and carefully verify that the difference between K1 and K2 does
+            not affect IR linkage.
+            """.trimIndent()
     )
 
     val MUTE_SIGNATURE_COMPARISON_K2 by enumDirective<TargetBackend>(