diff --git a/compiler/testData/ir/irText/expressions/augmentedAssignmentWithExpression.fir.txt b/compiler/testData/ir/irText/expressions/augmentedAssignmentWithExpression.fir.txt
index 400d8932075..072fd5423ee 100644
--- a/compiler/testData/ir/irText/expressions/augmentedAssignmentWithExpression.fir.txt
+++ b/compiler/testData/ir/irText/expressions/augmentedAssignmentWithExpression.fir.txt
@@ -15,16 +15,16 @@ FILE fqName:<root> fileName:/augmentedAssignmentWithExpression.kt
         CALL 'public final fun plusAssign (x: kotlin.Int): kotlin.Unit declared in <root>.Host' type=kotlin.Unit origin=null
           $this: GET_VAR '<this>: <root>.Host declared in <root>.Host' type=<root>.Host origin=null
           x: CONST Int type=kotlin.Int value=1
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/boundCallableReferences.fir.txt b/compiler/testData/ir/irText/expressions/boundCallableReferences.fir.txt
index 24983d35cf3..5e7f85ed55d 100644
--- a/compiler/testData/ir/irText/expressions/boundCallableReferences.fir.txt
+++ b/compiler/testData/ir/irText/expressions/boundCallableReferences.fir.txt
@@ -19,16 +19,16 @@ FILE fqName:<root> fileName:/boundCallableReferences.kt
           RETURN type=kotlin.Nothing from='public final fun <get-bar> (): kotlin.Int declared in <root>.A'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:bar type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.<get-bar>' type=<root>.A origin=null
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/callableRefToGenericMember.fir.txt b/compiler/testData/ir/irText/expressions/callableRefToGenericMember.fir.txt
index a3e38674f2b..c859384d777 100644
--- a/compiler/testData/ir/irText/expressions/callableRefToGenericMember.fir.txt
+++ b/compiler/testData/ir/irText/expressions/callableRefToGenericMember.fir.txt
@@ -20,16 +20,16 @@ FILE fqName:<root> fileName:/callableRefToGenericMember.kt
           RETURN type=kotlin.Nothing from='public final fun <get-bar> (): kotlin.Int declared in <root>.A'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:bar type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.<get-bar>' type=<root>.A origin=null
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/callableReferenceToImportedFromObject.fir.txt b/compiler/testData/ir/irText/expressions/callableReferenceToImportedFromObject.fir.txt
index 85da43297ee..5229ee0277c 100644
--- a/compiler/testData/ir/irText/expressions/callableReferenceToImportedFromObject.fir.txt
+++ b/compiler/testData/ir/irText/expressions/callableReferenceToImportedFromObject.fir.txt
@@ -21,16 +21,16 @@ FILE fqName:test fileName:/callableReferenceToImportedFromObject.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun foo (): kotlin.String declared in test.Foo'
           CONST String type=kotlin.String value=""
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/complexAugmentedAssignment.fir.txt b/compiler/testData/ir/irText/expressions/complexAugmentedAssignment.fir.txt
index 00c58aeddb2..13cd5e1af71 100644
--- a/compiler/testData/ir/irText/expressions/complexAugmentedAssignment.fir.txt
+++ b/compiler/testData/ir/irText/expressions/complexAugmentedAssignment.fir.txt
@@ -74,42 +74,42 @@ FILE fqName:<root> fileName:/complexAugmentedAssignment.kt
               SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x3 type:kotlin.Int visibility:private' type=kotlin.Unit origin=null
                 receiver: GET_VAR '<this>: <root>.X1.X2.X3 declared in <root>.X1.X2.X3.<set-x3>' type=<root>.X1.X2.X3 origin=null
                 value: GET_VAR '<set-?>: kotlin.Int declared in <root>.X1.X2.X3.<set-x3>' type=kotlin.Int origin=null
-        FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+        FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
           overridden:
             public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
           $this: VALUE_PARAMETER name:<this> type:kotlin.Any
           VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-        FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+        FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
           overridden:
             public open fun hashCode (): kotlin.Int declared in kotlin.Any
           $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-        FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+        FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
           overridden:
             public open fun toString (): kotlin.String declared in kotlin.Any
           $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
         overridden:
           public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
         VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
         overridden:
           public open fun hashCode (): kotlin.Int declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
         overridden:
           public open fun toString (): kotlin.String declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
@@ -194,16 +194,16 @@ FILE fqName:<root> fileName:/complexAugmentedAssignment.kt
           SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:s type:kotlin.Int visibility:private' type=kotlin.Unit origin=null
             receiver: GET_VAR '<this>: <root>.B declared in <root>.B.<set-s>' type=<root>.B origin=null
             value: GET_VAR '<set-?>: kotlin.Int declared in <root>.B.<set-s>' type=kotlin.Int origin=null
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
@@ -224,16 +224,16 @@ FILE fqName:<root> fileName:/complexAugmentedAssignment.kt
               $this: GET_VAR '<this>: <root>.B declared in <root>.Host.plusAssign' type=<root>.B origin=null
             other: CALL 'public final fun <get-s> (): kotlin.Int declared in <root>.B' type=kotlin.Int origin=null
               $this: GET_VAR 'b: <root>.B declared in <root>.Host.plusAssign' type=<root>.B origin=null
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/kt30020.fir.txt b/compiler/testData/ir/irText/expressions/kt30020.fir.txt
index 1f3b186a079..ca3ce360288 100644
--- a/compiler/testData/ir/irText/expressions/kt30020.fir.txt
+++ b/compiler/testData/ir/irText/expressions/kt30020.fir.txt
@@ -7,16 +7,16 @@ FILE fqName:<root> fileName:/kt30020.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.X
     FUN name:f visibility:public modality:ABSTRACT <> ($this:<root>.X) returnType:kotlin.collections.MutableList<kotlin.Any>
       $this: VALUE_PARAMETER name:<this> type:<root>.X
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
@@ -103,119 +103,119 @@ FILE fqName:<root> fileName:/kt30020.kt
         $this: VALUE_PARAMETER name:<this> type:<root>.AML.Inner
         BLOCK_BODY
           ERROR_EXPR 'Operator overload ambiguity. Compatible candidates: [kotlin/collections/plus, kotlin/collections/plusAssign]' type=IrErrorType
-      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
         overridden:
           public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
         VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
         overridden:
           public open fun hashCode (): kotlin.Int declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
         overridden:
           public open fun toString (): kotlin.String declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:add visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, element:kotlin.Int) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:add visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, element:kotlin.Int) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun add (element: E of kotlin.collections.MutableList): kotlin.Boolean declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:element index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:addAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:addAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun addAll (index: kotlin.Int, elements: kotlin.collections.Collection<E of kotlin.collections.MutableList>): kotlin.Boolean declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:index index:0 type:kotlin.Int
       VALUE_PARAMETER name:elements index:1 type:kotlin.collections.Collection<kotlin.Int>
-    FUN FAKE_OVERRIDE name:clear visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList) returnType:kotlin.Unit
+    FUN FAKE_OVERRIDE name:clear visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList) returnType:kotlin.Unit [fake_override]
       overridden:
         public abstract fun clear (): kotlin.Unit declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
-    FUN FAKE_OVERRIDE name:listIterator visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList) returnType:kotlin.collections.MutableListIterator<kotlin.Int>
+    FUN FAKE_OVERRIDE name:listIterator visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList) returnType:kotlin.collections.MutableListIterator<kotlin.Int> [fake_override]
       overridden:
         public abstract fun listIterator (): kotlin.collections.MutableListIterator<E of kotlin.collections.MutableList> declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
-    FUN FAKE_OVERRIDE name:remove visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, element:kotlin.Int) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:remove visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, element:kotlin.Int) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun remove (element: E of kotlin.collections.MutableList): kotlin.Boolean declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:element index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:removeAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:removeAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun removeAll (elements: kotlin.collections.Collection<E of kotlin.collections.MutableList>): kotlin.Boolean declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:elements index:0 type:kotlin.collections.Collection<kotlin.Int>
-    FUN FAKE_OVERRIDE name:removeAt visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:removeAt visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int) returnType:kotlin.Int [fake_override]
       overridden:
         public abstract fun removeAt (index: kotlin.Int): E of kotlin.collections.MutableList declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:index index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:retainAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:retainAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun retainAll (elements: kotlin.collections.Collection<E of kotlin.collections.MutableList>): kotlin.Boolean declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:elements index:0 type:kotlin.collections.Collection<kotlin.Int>
-    FUN FAKE_OVERRIDE name:set visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int, element:kotlin.Int) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:set visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, index:kotlin.Int, element:kotlin.Int) returnType:kotlin.Int [fake_override]
       overridden:
         public abstract fun set (index: kotlin.Int, element: E of kotlin.collections.MutableList): E of kotlin.collections.MutableList declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:index index:0 type:kotlin.Int
       VALUE_PARAMETER name:element index:1 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:subList visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, fromIndex:kotlin.Int, toIndex:kotlin.Int) returnType:kotlin.collections.MutableList<kotlin.Int>
+    FUN FAKE_OVERRIDE name:subList visibility:public modality:ABSTRACT <> ($this:kotlin.collections.MutableList, fromIndex:kotlin.Int, toIndex:kotlin.Int) returnType:kotlin.collections.MutableList<kotlin.Int> [fake_override]
       overridden:
         public abstract fun subList (fromIndex: kotlin.Int, toIndex: kotlin.Int): kotlin.collections.MutableList<E of kotlin.collections.MutableList> declared in kotlin.collections.MutableList
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.MutableList
       VALUE_PARAMETER name:fromIndex index:0 type:kotlin.Int
       VALUE_PARAMETER name:toIndex index:1 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:contains visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:contains visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun contains (element: E of kotlin.collections.MutableList): kotlin.Boolean declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
       VALUE_PARAMETER name:element index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:containsAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:containsAll visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, elements:kotlin.collections.Collection<kotlin.Int>) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun containsAll (elements: kotlin.collections.Collection<E of kotlin.collections.MutableList>): kotlin.Boolean declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
       VALUE_PARAMETER name:elements index:0 type:kotlin.collections.Collection<kotlin.Int>
-    FUN FAKE_OVERRIDE name:get visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, index:kotlin.Int) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:get visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, index:kotlin.Int) returnType:kotlin.Int [fake_override]
       overridden:
         public abstract fun get (index: kotlin.Int): E of kotlin.collections.MutableList declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
       VALUE_PARAMETER name:index index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:indexOf visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:indexOf visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Int [fake_override]
       overridden:
         public abstract fun indexOf (element: E of kotlin.collections.MutableList): kotlin.Int declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
       VALUE_PARAMETER name:element index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:isEmpty visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:isEmpty visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List) returnType:kotlin.Boolean [fake_override]
       overridden:
         public abstract fun isEmpty (): kotlin.Boolean declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
-    FUN FAKE_OVERRIDE name:iterator visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List) returnType:kotlin.collections.Iterator<kotlin.Int>
+    FUN FAKE_OVERRIDE name:iterator visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List) returnType:kotlin.collections.Iterator<kotlin.Int> [fake_override]
       overridden:
         public abstract fun iterator (): kotlin.collections.Iterator<E of kotlin.collections.MutableList> declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
-    FUN FAKE_OVERRIDE name:lastIndexOf visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:lastIndexOf visibility:public modality:ABSTRACT <> ($this:kotlin.collections.List, element:kotlin.Int) returnType:kotlin.Int [fake_override]
       overridden:
         public abstract fun lastIndexOf (element: E of kotlin.collections.MutableList): kotlin.Int declared in kotlin.collections.List
       $this: VALUE_PARAMETER name:<this> type:kotlin.collections.List
       VALUE_PARAMETER name:element index:0 type:kotlin.Int
-    PROPERTY FAKE_OVERRIDE name:size visibility:public modality:ABSTRACT [val]
-      FUN FAKE_OVERRIDE name:<get-size> visibility:public modality:ABSTRACT <> ($this:<root>.AML) returnType:kotlin.Int
-        correspondingProperty: PROPERTY FAKE_OVERRIDE name:size visibility:public modality:ABSTRACT [val]
+    PROPERTY FAKE_OVERRIDE name:size visibility:public modality:ABSTRACT [fake_override,val]
+      FUN FAKE_OVERRIDE name:<get-size> visibility:public modality:ABSTRACT <> ($this:<root>.AML) returnType:kotlin.Int [fake_override]
+        correspondingProperty: PROPERTY FAKE_OVERRIDE name:size visibility:public modality:ABSTRACT [fake_override,val]
         overridden:
           public abstract fun <get-size> (): kotlin.Int declared in kotlin.collections.List
         $this: VALUE_PARAMETER name:<this> type:<root>.AML
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/propertyReferences.fir.txt b/compiler/testData/ir/irText/expressions/propertyReferences.fir.txt
index 3412efce6b3..51ecc994704 100644
--- a/compiler/testData/ir/irText/expressions/propertyReferences.fir.txt
+++ b/compiler/testData/ir/irText/expressions/propertyReferences.fir.txt
@@ -18,16 +18,16 @@ FILE fqName:<root> fileName:/propertyReferences.kt
       VALUE_PARAMETER name:kProp index:1 type:kotlin.Any
       VALUE_PARAMETER name:value index:2 type:kotlin.Int
       BLOCK_BODY
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
@@ -67,16 +67,16 @@ FILE fqName:<root> fileName:/propertyReferences.kt
         correspondingProperty: PROPERTY name:varWithProtectedSet visibility:public modality:FINAL [var]
         $this: VALUE_PARAMETER name:<this> type:<root>.C
         VALUE_PARAMETER name:value index:0 type:kotlin.Int
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/expressions/reflectionLiterals.fir.txt b/compiler/testData/ir/irText/expressions/reflectionLiterals.fir.txt
index efc7724c37d..8b338e1ac98 100644
--- a/compiler/testData/ir/irText/expressions/reflectionLiterals.fir.txt
+++ b/compiler/testData/ir/irText/expressions/reflectionLiterals.fir.txt
@@ -8,16 +8,16 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
     FUN name:foo visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
       overridden:
         public open fun hashCode (): kotlin.Int declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
       overridden:
         public open fun toString (): kotlin.String declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any