diff --git a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DataClassMembersGenerator.kt b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DataClassMembersGenerator.kt
index 548d7f8dfac..51ae3977e9d 100644
--- a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DataClassMembersGenerator.kt
+++ b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DataClassMembersGenerator.kt
@@ -255,14 +255,17 @@ class DataClassMembersGenerator(val components: Fir2IrComponents) : Fir2IrCompon
         }
 
         fun generateComponentBody(irFunction: IrFunction) {
+            irFunction.origin = origin
             val index = DataClassResolver.getComponentIndex(irFunction.name.asString())
             val valueParameter = irClass.primaryConstructor!!.valueParameters[index - 1]
             val irProperty = irDataClassMembersGenerator.getProperty(null, valueParameter)!!
             irDataClassMembersGenerator.generateComponentFunction(irFunction, irProperty)
         }
 
-        fun generateCopyBody(irFunction: IrFunction) =
+        fun generateCopyBody(irFunction: IrFunction) {
+            irFunction.origin = origin
             irDataClassMembersGenerator.generateCopyFunction(irFunction, irClass.primaryConstructor!!.symbol)
+        }
 
         private fun createSyntheticIrFunction(
             name: Name,
diff --git a/compiler/testData/codegen/boxModernJdk/testsWithJava17/records/recordWithCompanion.fir.ir.txt b/compiler/testData/codegen/boxModernJdk/testsWithJava17/records/recordWithCompanion.fir.ir.txt
index b7f9af5976d..2e6e650eac0 100644
--- a/compiler/testData/codegen/boxModernJdk/testsWithJava17/records/recordWithCompanion.fir.ir.txt
+++ b/compiler/testData/codegen/boxModernJdk/testsWithJava17/records/recordWithCompanion.fir.ir.txt
@@ -38,13 +38,13 @@ FILE fqName:<root> fileName:/recordWithCompanion.kt
         overridden:
           public open fun toString (): kotlin.String declared in kotlin.Any
         $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Tag) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Tag) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Tag
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.String [operator] declared in <root>.Tag'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:id type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
             receiver: GET_VAR '<this>: <root>.Tag declared in <root>.Tag.component1' type=<root>.Tag origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Tag, id:kotlin.String) returnType:<root>.Tag
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Tag, id:kotlin.String) returnType:<root>.Tag
       $this: VALUE_PARAMETER name:<this> type:<root>.Tag
       VALUE_PARAMETER name:id index:0 type:kotlin.String
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/dataClassWithArrayMembers.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/dataClassWithArrayMembers.fir.ir.txt
index e21f103fd70..4677adecaba 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/dataClassWithArrayMembers.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/dataClassWithArrayMembers.fir.ir.txt
@@ -113,61 +113,61 @@ FILE fqName:<root> fileName:/dataClassWithArrayMembers.kt
           RETURN type=kotlin.Nothing from='public final fun <get-doubleArray> (): kotlin.DoubleArray declared in <root>.Test1'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:doubleArray type:kotlin.DoubleArray visibility:private [final]' type=kotlin.DoubleArray origin=null
               receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.<get-doubleArray>' type=<root>.Test1 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Array<kotlin.String> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Array<kotlin.String> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Array<kotlin.String> [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:stringArray type:kotlin.Array<kotlin.String> visibility:private [final]' type=kotlin.Array<kotlin.String> origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component1' type=<root>.Test1 origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.CharArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.CharArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.CharArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:charArray type:kotlin.CharArray visibility:private [final]' type=kotlin.CharArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component2' type=<root>.Test1 origin=null
-    FUN name:component3 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.BooleanArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component3 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.BooleanArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component3 (): kotlin.BooleanArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:booleanArray type:kotlin.BooleanArray visibility:private [final]' type=kotlin.BooleanArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component3' type=<root>.Test1 origin=null
-    FUN name:component4 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.ByteArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component4 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.ByteArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component4 (): kotlin.ByteArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:byteArray type:kotlin.ByteArray visibility:private [final]' type=kotlin.ByteArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component4' type=<root>.Test1 origin=null
-    FUN name:component5 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.ShortArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component5 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.ShortArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component5 (): kotlin.ShortArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:shortArray type:kotlin.ShortArray visibility:private [final]' type=kotlin.ShortArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component5' type=<root>.Test1 origin=null
-    FUN name:component6 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.IntArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component6 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.IntArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component6 (): kotlin.IntArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:intArray type:kotlin.IntArray visibility:private [final]' type=kotlin.IntArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component6' type=<root>.Test1 origin=null
-    FUN name:component7 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.LongArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component7 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.LongArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component7 (): kotlin.LongArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:longArray type:kotlin.LongArray visibility:private [final]' type=kotlin.LongArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component7' type=<root>.Test1 origin=null
-    FUN name:component8 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.FloatArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component8 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.FloatArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component8 (): kotlin.FloatArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:floatArray type:kotlin.FloatArray visibility:private [final]' type=kotlin.FloatArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component8' type=<root>.Test1 origin=null
-    FUN name:component9 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.DoubleArray [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component9 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.DoubleArray [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component9 (): kotlin.DoubleArray [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:doubleArray type:kotlin.DoubleArray visibility:private [final]' type=kotlin.DoubleArray origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component9' type=<root>.Test1 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test1, stringArray:kotlin.Array<kotlin.String>, charArray:kotlin.CharArray, booleanArray:kotlin.BooleanArray, byteArray:kotlin.ByteArray, shortArray:kotlin.ShortArray, intArray:kotlin.IntArray, longArray:kotlin.LongArray, floatArray:kotlin.FloatArray, doubleArray:kotlin.DoubleArray) returnType:<root>.Test1
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test1, stringArray:kotlin.Array<kotlin.String>, charArray:kotlin.CharArray, booleanArray:kotlin.BooleanArray, byteArray:kotlin.ByteArray, shortArray:kotlin.ShortArray, intArray:kotlin.IntArray, longArray:kotlin.LongArray, floatArray:kotlin.FloatArray, doubleArray:kotlin.DoubleArray) returnType:<root>.Test1
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       VALUE_PARAMETER name:stringArray index:0 type:kotlin.Array<kotlin.String>
         EXPRESSION_BODY
@@ -469,13 +469,13 @@ FILE fqName:<root> fileName:/dataClassWithArrayMembers.kt
           RETURN type=kotlin.Nothing from='public final fun <get-genericArray> (): kotlin.Array<T of <root>.Test2> declared in <root>.Test2'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:genericArray type:kotlin.Array<T of <root>.Test2> visibility:private [final]' type=kotlin.Array<T of <root>.Test2> origin=null
               receiver: GET_VAR '<this>: <root>.Test2<T of <root>.Test2> declared in <root>.Test2.<get-genericArray>' type=<root>.Test2<T of <root>.Test2> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>) returnType:kotlin.Array<T of <root>.Test2> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>) returnType:kotlin.Array<T of <root>.Test2> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2<T of <root>.Test2>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Array<T of <root>.Test2> [operator] declared in <root>.Test2'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:genericArray type:kotlin.Array<T of <root>.Test2> visibility:private [final]' type=kotlin.Array<T of <root>.Test2> origin=null
             receiver: GET_VAR '<this>: <root>.Test2<T of <root>.Test2> declared in <root>.Test2.component1' type=<root>.Test2<T of <root>.Test2> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>, genericArray:kotlin.Array<T of <root>.Test2>) returnType:<root>.Test2<T of <root>.Test2>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>, genericArray:kotlin.Array<T of <root>.Test2>) returnType:<root>.Test2<T of <root>.Test2>
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2<T of <root>.Test2>
       VALUE_PARAMETER name:genericArray index:0 type:kotlin.Array<T of <root>.Test2>
         EXPRESSION_BODY
@@ -559,13 +559,13 @@ FILE fqName:<root> fileName:/dataClassWithArrayMembers.kt
           RETURN type=kotlin.Nothing from='public final fun <get-anyArrayN> (): kotlin.Array<kotlin.Any>? declared in <root>.Test3'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:anyArrayN type:kotlin.Array<kotlin.Any>? visibility:private [final]' type=kotlin.Array<kotlin.Any>? origin=null
               receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.<get-anyArrayN>' type=<root>.Test3 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Array<kotlin.Any>? [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Array<kotlin.Any>? [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Array<kotlin.Any>? [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:anyArrayN type:kotlin.Array<kotlin.Any>? visibility:private [final]' type=kotlin.Array<kotlin.Any>? origin=null
             receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.component1' type=<root>.Test3 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test3, anyArrayN:kotlin.Array<kotlin.Any>?) returnType:<root>.Test3
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test3, anyArrayN:kotlin.Array<kotlin.Any>?) returnType:<root>.Test3
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       VALUE_PARAMETER name:anyArrayN index:0 type:kotlin.Array<kotlin.Any>?
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/dataClasses.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/dataClasses.fir.ir.txt
index fba5988070f..10a63191a11 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/dataClasses.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/dataClasses.fir.ir.txt
@@ -41,25 +41,25 @@ FILE fqName:<root> fileName:/dataClasses.kt
           RETURN type=kotlin.Nothing from='public final fun <get-z> (): kotlin.Any declared in <root>.Test1'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:z type:kotlin.Any visibility:private [final]' type=kotlin.Any origin=null
               receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.<get-z>' type=<root>.Test1 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component1' type=<root>.Test1 origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.String [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component2' type=<root>.Test1 origin=null
-    FUN name:component3 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Any [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component3 visibility:public modality:FINAL <> ($this:<root>.Test1) returnType:kotlin.Any [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component3 (): kotlin.Any [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:z type:kotlin.Any visibility:private [final]' type=kotlin.Any origin=null
             receiver: GET_VAR '<this>: <root>.Test1 declared in <root>.Test1.component3' type=<root>.Test1 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test1, x:kotlin.Int, y:kotlin.String, z:kotlin.Any) returnType:<root>.Test1
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test1, x:kotlin.Int, y:kotlin.String, z:kotlin.Any) returnType:<root>.Test1
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1
       VALUE_PARAMETER name:x index:0 type:kotlin.Int
         EXPRESSION_BODY
@@ -195,13 +195,13 @@ FILE fqName:<root> fileName:/dataClasses.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): kotlin.Any? declared in <root>.Test2'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Any? visibility:private [final]' type=kotlin.Any? origin=null
               receiver: GET_VAR '<this>: <root>.Test2 declared in <root>.Test2.<get-x>' type=<root>.Test2 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2) returnType:kotlin.Any? [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2) returnType:kotlin.Any? [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Any? [operator] declared in <root>.Test2'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Any? visibility:private [final]' type=kotlin.Any? origin=null
             receiver: GET_VAR '<this>: <root>.Test2 declared in <root>.Test2.component1' type=<root>.Test2 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test2, x:kotlin.Any?) returnType:<root>.Test2
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test2, x:kotlin.Any?) returnType:<root>.Test2
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2
       VALUE_PARAMETER name:x index:0 type:kotlin.Any?
         EXPRESSION_BODY
@@ -328,31 +328,31 @@ FILE fqName:<root> fileName:/dataClasses.kt
           RETURN type=kotlin.Nothing from='public final fun <get-df> (): kotlin.Float? declared in <root>.Test3'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:df type:kotlin.Float? visibility:private [final]' type=kotlin.Float? origin=null
               receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.<get-df>' type=<root>.Test3 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Double [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Double [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Double [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:d type:kotlin.Double visibility:private [final]' type=kotlin.Double origin=null
             receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.component1' type=<root>.Test3 origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Double? [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Double? [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.Double? [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:dn type:kotlin.Double? visibility:private [final]' type=kotlin.Double? origin=null
             receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.component2' type=<root>.Test3 origin=null
-    FUN name:component3 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Float [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component3 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Float [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component3 (): kotlin.Float [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:f type:kotlin.Float visibility:private [final]' type=kotlin.Float origin=null
             receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.component3' type=<root>.Test3 origin=null
-    FUN name:component4 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Float? [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component4 visibility:public modality:FINAL <> ($this:<root>.Test3) returnType:kotlin.Float? [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component4 (): kotlin.Float? [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:df type:kotlin.Float? visibility:private [final]' type=kotlin.Float? origin=null
             receiver: GET_VAR '<this>: <root>.Test3 declared in <root>.Test3.component4' type=<root>.Test3 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test3, d:kotlin.Double, dn:kotlin.Double?, f:kotlin.Float, df:kotlin.Float?) returnType:<root>.Test3
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test3, d:kotlin.Double, dn:kotlin.Double?, f:kotlin.Float, df:kotlin.Float?) returnType:<root>.Test3
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3
       VALUE_PARAMETER name:d index:0 type:kotlin.Double
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/dataClassesGeneric.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/dataClassesGeneric.fir.ir.txt
index cc8d4567d90..3a0a1cb7226 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/dataClassesGeneric.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/dataClassesGeneric.fir.ir.txt
@@ -18,13 +18,13 @@ FILE fqName:<root> fileName:/dataClassesGeneric.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): T of <root>.Test1 declared in <root>.Test1'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Test1 visibility:private [final]' type=T of <root>.Test1 origin=null
               receiver: GET_VAR '<this>: <root>.Test1<T of <root>.Test1> declared in <root>.Test1.<get-x>' type=<root>.Test1<T of <root>.Test1> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1<T of <root>.Test1>) returnType:T of <root>.Test1 [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test1<T of <root>.Test1>) returnType:T of <root>.Test1 [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1<T of <root>.Test1>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): T of <root>.Test1 [operator] declared in <root>.Test1'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Test1 visibility:private [final]' type=T of <root>.Test1 origin=null
             receiver: GET_VAR '<this>: <root>.Test1<T of <root>.Test1> declared in <root>.Test1.component1' type=<root>.Test1<T of <root>.Test1> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test1<T of <root>.Test1>, x:T of <root>.Test1) returnType:<root>.Test1<T of <root>.Test1>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test1<T of <root>.Test1>, x:T of <root>.Test1) returnType:<root>.Test1<T of <root>.Test1>
       $this: VALUE_PARAMETER name:<this> type:<root>.Test1<T of <root>.Test1>
       VALUE_PARAMETER name:x index:0 type:T of <root>.Test1
         EXPRESSION_BODY
@@ -117,13 +117,13 @@ FILE fqName:<root> fileName:/dataClassesGeneric.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): T of <root>.Test2 declared in <root>.Test2'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Test2 visibility:private [final]' type=T of <root>.Test2 origin=null
               receiver: GET_VAR '<this>: <root>.Test2<T of <root>.Test2> declared in <root>.Test2.<get-x>' type=<root>.Test2<T of <root>.Test2> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>) returnType:T of <root>.Test2 [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>) returnType:T of <root>.Test2 [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2<T of <root>.Test2>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): T of <root>.Test2 [operator] declared in <root>.Test2'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Test2 visibility:private [final]' type=T of <root>.Test2 origin=null
             receiver: GET_VAR '<this>: <root>.Test2<T of <root>.Test2> declared in <root>.Test2.component1' type=<root>.Test2<T of <root>.Test2> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>, x:T of <root>.Test2) returnType:<root>.Test2<T of <root>.Test2>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test2<T of <root>.Test2>, x:T of <root>.Test2) returnType:<root>.Test2<T of <root>.Test2>
       $this: VALUE_PARAMETER name:<this> type:<root>.Test2<T of <root>.Test2>
       VALUE_PARAMETER name:x index:0 type:T of <root>.Test2
         EXPRESSION_BODY
@@ -207,13 +207,13 @@ FILE fqName:<root> fileName:/dataClassesGeneric.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): kotlin.collections.List<T of <root>.Test3> declared in <root>.Test3'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.collections.List<T of <root>.Test3> visibility:private [final]' type=kotlin.collections.List<T of <root>.Test3> origin=null
               receiver: GET_VAR '<this>: <root>.Test3<T of <root>.Test3> declared in <root>.Test3.<get-x>' type=<root>.Test3<T of <root>.Test3> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3<T of <root>.Test3>) returnType:kotlin.collections.List<T of <root>.Test3> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test3<T of <root>.Test3>) returnType:kotlin.collections.List<T of <root>.Test3> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3<T of <root>.Test3>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.collections.List<T of <root>.Test3> [operator] declared in <root>.Test3'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.collections.List<T of <root>.Test3> visibility:private [final]' type=kotlin.collections.List<T of <root>.Test3> origin=null
             receiver: GET_VAR '<this>: <root>.Test3<T of <root>.Test3> declared in <root>.Test3.component1' type=<root>.Test3<T of <root>.Test3> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test3<T of <root>.Test3>, x:kotlin.collections.List<T of <root>.Test3>) returnType:<root>.Test3<T of <root>.Test3>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test3<T of <root>.Test3>, x:kotlin.collections.List<T of <root>.Test3>) returnType:<root>.Test3<T of <root>.Test3>
       $this: VALUE_PARAMETER name:<this> type:<root>.Test3<T of <root>.Test3>
       VALUE_PARAMETER name:x index:0 type:kotlin.collections.List<T of <root>.Test3>
         EXPRESSION_BODY
@@ -296,13 +296,13 @@ FILE fqName:<root> fileName:/dataClassesGeneric.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): kotlin.collections.List<kotlin.String> declared in <root>.Test4'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.collections.List<kotlin.String> visibility:private [final]' type=kotlin.collections.List<kotlin.String> origin=null
               receiver: GET_VAR '<this>: <root>.Test4 declared in <root>.Test4.<get-x>' type=<root>.Test4 origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test4) returnType:kotlin.collections.List<kotlin.String> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test4) returnType:kotlin.collections.List<kotlin.String> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test4
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.collections.List<kotlin.String> [operator] declared in <root>.Test4'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.collections.List<kotlin.String> visibility:private [final]' type=kotlin.collections.List<kotlin.String> origin=null
             receiver: GET_VAR '<this>: <root>.Test4 declared in <root>.Test4.component1' type=<root>.Test4 origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test4, x:kotlin.collections.List<kotlin.String>) returnType:<root>.Test4
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test4, x:kotlin.collections.List<kotlin.String>) returnType:<root>.Test4
       $this: VALUE_PARAMETER name:<this> type:<root>.Test4
       VALUE_PARAMETER name:x index:0 type:kotlin.collections.List<kotlin.String>
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/delegationInSealed.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/delegationInSealed.fir.ir.txt
index d493005ab51..1ec6faad811 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/delegationInSealed.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/delegationInSealed.fir.ir.txt
@@ -66,13 +66,13 @@ FILE fqName:<root> fileName:/delegationInSealed.kt
             RETURN type=kotlin.Nothing from='public final fun <get-c> (): kotlin.CharSequence declared in <root>.A.B'
               GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:c type:kotlin.CharSequence visibility:private [final]' type=kotlin.CharSequence origin=null
                 receiver: GET_VAR '<this>: <root>.A.B declared in <root>.A.B.<get-c>' type=<root>.A.B origin=null
-      FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.A.B) returnType:kotlin.CharSequence [operator]
+      FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.A.B) returnType:kotlin.CharSequence [operator]
         $this: VALUE_PARAMETER name:<this> type:<root>.A.B
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.CharSequence [operator] declared in <root>.A.B'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:c type:kotlin.CharSequence visibility:private [final]' type=kotlin.CharSequence origin=null
               receiver: GET_VAR '<this>: <root>.A.B declared in <root>.A.B.component1' type=<root>.A.B origin=null
-      FUN name:copy visibility:public modality:FINAL <> ($this:<root>.A.B, c:kotlin.CharSequence) returnType:<root>.A.B
+      FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.A.B, c:kotlin.CharSequence) returnType:<root>.A.B
         $this: VALUE_PARAMETER name:<this> type:<root>.A.B
         VALUE_PARAMETER name:c index:0 type:kotlin.CharSequence
           EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/kt31649.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/kt31649.fir.ir.txt
index 305aa686ff8..d0eb2880d54 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/kt31649.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/kt31649.fir.ir.txt
@@ -17,13 +17,13 @@ FILE fqName:<root> fileName:/kt31649.kt
           RETURN type=kotlin.Nothing from='public final fun <get-nn> (): kotlin.Nothing? declared in <root>.TestData'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:nn type:kotlin.Nothing? visibility:private [final]' type=kotlin.Nothing? origin=null
               receiver: GET_VAR '<this>: <root>.TestData declared in <root>.TestData.<get-nn>' type=<root>.TestData origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.TestData) returnType:kotlin.Nothing? [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.TestData) returnType:kotlin.Nothing? [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.TestData
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Nothing? [operator] declared in <root>.TestData'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:nn type:kotlin.Nothing? visibility:private [final]' type=kotlin.Nothing? origin=null
             receiver: GET_VAR '<this>: <root>.TestData declared in <root>.TestData.component1' type=<root>.TestData origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.TestData, nn:kotlin.Nothing?) returnType:<root>.TestData
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.TestData, nn:kotlin.Nothing?) returnType:<root>.TestData
       $this: VALUE_PARAMETER name:<this> type:<root>.TestData
       VALUE_PARAMETER name:nn index:0 type:kotlin.Nothing?
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/kt49936.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/kt49936.fir.ir.txt
index d9e89d7d5c7..56a6b2f5b3c 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/kt49936.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/kt49936.fir.ir.txt
@@ -25,13 +25,13 @@ FILE fqName:<root> fileName:/kt49936.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): kotlin.String declared in <root>.A'
             GET_VAR '<this>: kotlin.String declared in <root>.A.<get-x>' type=kotlin.String origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.A'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.A declared in <root>.A.component1' type=<root>.A origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.A, x:kotlin.Int) returnType:<root>.A
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.A, x:kotlin.Int) returnType:<root>.A
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       VALUE_PARAMETER name:x index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/lambdaInDataClassDefaultParameter.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/lambdaInDataClassDefaultParameter.fir.ir.txt
index ad405bf45d6..d2ef8f95e5e 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/lambdaInDataClassDefaultParameter.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/lambdaInDataClassDefaultParameter.fir.ir.txt
@@ -25,13 +25,13 @@ FILE fqName:<root> fileName:/lambdaInDataClassDefaultParameter.kt
           RETURN type=kotlin.Nothing from='public final fun <get-runA> (): @[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> declared in <root>.A'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:runA type:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> visibility:private [final]' type=@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.<get-runA>' type=<root>.A origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): @[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> [operator] declared in <root>.A'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:runA type:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> visibility:private [final]' type=@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit> origin=null
             receiver: GET_VAR '<this>: <root>.A declared in <root>.A.component1' type=<root>.A origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.A, runA:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit>) returnType:<root>.A
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.A, runA:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit>) returnType:<root>.A
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       VALUE_PARAMETER name:runA index:0 type:@[ExtensionFunctionType] kotlin.Function2<<root>.A, kotlin.String, kotlin.Unit>
         EXPRESSION_BODY
@@ -135,13 +135,13 @@ FILE fqName:<root> fileName:/lambdaInDataClassDefaultParameter.kt
           RETURN type=kotlin.Nothing from='public final fun <get-x> (): kotlin.Any declared in <root>.B'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Any visibility:private [final]' type=kotlin.Any origin=null
               receiver: GET_VAR '<this>: <root>.B declared in <root>.B.<get-x>' type=<root>.B origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.B) returnType:kotlin.Any [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.B) returnType:kotlin.Any [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.B
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Any [operator] declared in <root>.B'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Any visibility:private [final]' type=kotlin.Any origin=null
             receiver: GET_VAR '<this>: <root>.B declared in <root>.B.component1' type=<root>.B origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.B, x:kotlin.Any) returnType:<root>.B
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.B, x:kotlin.Any) returnType:<root>.B
       $this: VALUE_PARAMETER name:<this> type:<root>.B
       VALUE_PARAMETER name:x index:0 type:kotlin.Any
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/classes/dataClasses/openDataClass.fir.ir.txt b/compiler/testData/ir/irText/classes/dataClasses/openDataClass.fir.ir.txt
index 734f62fee02..b54278b772f 100644
--- a/compiler/testData/ir/irText/classes/dataClasses/openDataClass.fir.ir.txt
+++ b/compiler/testData/ir/irText/classes/dataClasses/openDataClass.fir.ir.txt
@@ -31,19 +31,19 @@ FILE fqName:<root> fileName:/openDataClass.kt
           RETURN type=kotlin.Nothing from='public open fun <get-test2> (): kotlin.String declared in <root>.ValidatedProperties'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
               receiver: GET_VAR '<this>: <root>.ValidatedProperties declared in <root>.ValidatedProperties.<get-test2>' type=<root>.ValidatedProperties origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.ValidatedProperties
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.String [operator] declared in <root>.ValidatedProperties'
           CALL 'public open fun <get-test1> (): kotlin.String declared in <root>.ValidatedProperties' type=kotlin.String origin=null
             $this: GET_VAR '<this>: <root>.ValidatedProperties declared in <root>.ValidatedProperties.component1' type=<root>.ValidatedProperties origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.ValidatedProperties
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.String [operator] declared in <root>.ValidatedProperties'
           CALL 'public open fun <get-test2> (): kotlin.String declared in <root>.ValidatedProperties' type=kotlin.String origin=null
             $this: GET_VAR '<this>: <root>.ValidatedProperties declared in <root>.ValidatedProperties.component2' type=<root>.ValidatedProperties origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties, test1:kotlin.String, test2:kotlin.String) returnType:<root>.ValidatedProperties
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.ValidatedProperties, test1:kotlin.String, test2:kotlin.String) returnType:<root>.ValidatedProperties
       $this: VALUE_PARAMETER name:<this> type:<root>.ValidatedProperties
       VALUE_PARAMETER name:test1 index:0 type:kotlin.String
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
index 2e54684aff8..afe414bddef 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessCompositeOperators.fir.ir.txt
@@ -25,13 +25,13 @@ FILE fqName:<root> fileName:/arrayAccessCompositeOperators.kt
           SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Unit origin=null
             receiver: GET_VAR '<this>: <root>.MyContainer declared in <root>.MyContainer.<set-i>' type=<root>.MyContainer origin=null
             value: GET_VAR '<set-?>: kotlin.Int declared in <root>.MyContainer.<set-i>' type=kotlin.Int origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.MyContainer) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.MyContainer) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.MyContainer
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.MyContainer'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.MyContainer declared in <root>.MyContainer.component1' type=<root>.MyContainer origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.MyContainer, i:kotlin.Int) returnType:<root>.MyContainer
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.MyContainer, i:kotlin.Int) returnType:<root>.MyContainer
       $this: VALUE_PARAMETER name:<this> type:<root>.MyContainer
       VALUE_PARAMETER name:i index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
index 8e785efd204..44b5c2a1e87 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/arrayAccessOperators.fir.ir.txt
@@ -25,13 +25,13 @@ FILE fqName:<root> fileName:/arrayAccessOperators.kt
           SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:s type:kotlin.String visibility:private' type=kotlin.Unit origin=null
             receiver: GET_VAR '<this>: <root>.MyContainer declared in <root>.MyContainer.<set-s>' type=<root>.MyContainer origin=null
             value: GET_VAR '<set-?>: kotlin.String declared in <root>.MyContainer.<set-s>' type=kotlin.String origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.MyContainer) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.MyContainer) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.MyContainer
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.String [operator] declared in <root>.MyContainer'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:s type:kotlin.String visibility:private' type=kotlin.String origin=null
             receiver: GET_VAR '<this>: <root>.MyContainer declared in <root>.MyContainer.component1' type=<root>.MyContainer origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.MyContainer, s:kotlin.String) returnType:<root>.MyContainer
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.MyContainer, s:kotlin.String) returnType:<root>.MyContainer
       $this: VALUE_PARAMETER name:<this> type:<root>.MyContainer
       VALUE_PARAMETER name:s index:0 type:kotlin.String
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
index 6637ce42053..707b7a0df7d 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.fir.ir.txt
@@ -25,13 +25,13 @@ FILE fqName:<root> fileName:/compoundAssignmentOperators.kt
           SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Unit origin=null
             receiver: GET_VAR '<this>: <root>.Result declared in <root>.Result.<set-i>' type=<root>.Result origin=null
             value: GET_VAR '<set-?>: kotlin.Int declared in <root>.Result.<set-i>' type=kotlin.Int origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Result) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Result) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Result
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.Result'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.Result declared in <root>.Result.component1' type=<root>.Result origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Result, i:kotlin.Int) returnType:<root>.Result
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Result, i:kotlin.Int) returnType:<root>.Result
       $this: VALUE_PARAMETER name:<this> type:<root>.Result
       VALUE_PARAMETER name:i index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
index 134e47da052..0f0f799ee2d 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.ir.txt
@@ -31,19 +31,19 @@ FILE fqName:<root> fileName:/compareTo.kt
           RETURN type=kotlin.Nothing from='public final fun <get-second> (): B of <root>.Pair declared in <root>.Pair'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:second type:B of <root>.Pair visibility:private [final]' type=B of <root>.Pair origin=null
               receiver: GET_VAR '<this>: <root>.Pair<A of <root>.Pair, B of <root>.Pair> declared in <root>.Pair.<get-second>' type=<root>.Pair<A of <root>.Pair, B of <root>.Pair> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>) returnType:A of <root>.Pair [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>) returnType:A of <root>.Pair [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Pair<A of <root>.Pair, B of <root>.Pair>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): A of <root>.Pair [operator] declared in <root>.Pair'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:first type:A of <root>.Pair visibility:private [final]' type=A of <root>.Pair origin=null
             receiver: GET_VAR '<this>: <root>.Pair<A of <root>.Pair, B of <root>.Pair> declared in <root>.Pair.component1' type=<root>.Pair<A of <root>.Pair, B of <root>.Pair> origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>) returnType:B of <root>.Pair [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>) returnType:B of <root>.Pair [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Pair<A of <root>.Pair, B of <root>.Pair>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): B of <root>.Pair [operator] declared in <root>.Pair'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:second type:B of <root>.Pair visibility:private [final]' type=B of <root>.Pair origin=null
             receiver: GET_VAR '<this>: <root>.Pair<A of <root>.Pair, B of <root>.Pair> declared in <root>.Pair.component2' type=<root>.Pair<A of <root>.Pair, B of <root>.Pair> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>, first:A of <root>.Pair, second:B of <root>.Pair) returnType:<root>.Pair<A of <root>.Pair, B of <root>.Pair>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Pair<A of <root>.Pair, B of <root>.Pair>, first:A of <root>.Pair, second:B of <root>.Pair) returnType:<root>.Pair<A of <root>.Pair, B of <root>.Pair>
       $this: VALUE_PARAMETER name:<this> type:<root>.Pair<A of <root>.Pair, B of <root>.Pair>
       VALUE_PARAMETER name:first index:0 type:A of <root>.Pair
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
index dce4c353217..6ef5b97bd44 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/iteratorOperator.fir.ir.txt
@@ -27,13 +27,13 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
           SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Unit origin=null
             receiver: GET_VAR '<this>: <root>.Counter declared in <root>.Counter.<set-i>' type=<root>.Counter origin=null
             value: GET_VAR '<set-?>: kotlin.Int declared in <root>.Counter.<set-i>' type=kotlin.Int origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Counter) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Counter) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Counter
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.Counter'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.Counter declared in <root>.Counter.component1' type=<root>.Counter origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Counter, i:kotlin.Int) returnType:<root>.Counter
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Counter, i:kotlin.Int) returnType:<root>.Counter
       $this: VALUE_PARAMETER name:<this> type:<root>.Counter
       VALUE_PARAMETER name:i index:0 type:kotlin.Int
         EXPRESSION_BODY
@@ -117,13 +117,13 @@ FILE fqName:<root> fileName:/iteratorOperator.kt
           RETURN type=kotlin.Nothing from='public final fun <get-max> (): kotlin.Int declared in <root>.CounterConfig'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:max type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.CounterConfig declared in <root>.CounterConfig.<get-max>' type=<root>.CounterConfig origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.CounterConfig) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.CounterConfig) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.CounterConfig
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.CounterConfig'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:max type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.CounterConfig declared in <root>.CounterConfig.component1' type=<root>.CounterConfig origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.CounterConfig, max:kotlin.Int) returnType:<root>.CounterConfig
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.CounterConfig, max:kotlin.Int) returnType:<root>.CounterConfig
       $this: VALUE_PARAMETER name:<this> type:<root>.CounterConfig
       VALUE_PARAMETER name:max index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
index acb96585951..47a23ce29c0 100644
--- a/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/contextReceivers/unaryOperators.fir.ir.txt
@@ -17,13 +17,13 @@ FILE fqName:<root> fileName:/unaryOperators.kt
           RETURN type=kotlin.Nothing from='public final fun <get-i> (): kotlin.Int declared in <root>.Result'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.Result declared in <root>.Result.<get-i>' type=<root>.Result origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Result) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Result) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Result
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.Result'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:i type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.Result declared in <root>.Result.component1' type=<root>.Result origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Result, i:kotlin.Int) returnType:<root>.Result
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Result, i:kotlin.Int) returnType:<root>.Result
       $this: VALUE_PARAMETER name:<this> type:<root>.Result
       VALUE_PARAMETER name:i index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/jvmRecord/dataClassWithJvmRecord.fir.ir.txt b/compiler/testData/ir/irText/declarations/jvmRecord/dataClassWithJvmRecord.fir.ir.txt
index 5ca7341e116..fbc115e673c 100644
--- a/compiler/testData/ir/irText/declarations/jvmRecord/dataClassWithJvmRecord.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/jvmRecord/dataClassWithJvmRecord.fir.ir.txt
@@ -19,13 +19,13 @@ FILE fqName:<root> fileName:/dataClassWithJvmRecord.kt
           RETURN type=kotlin.Nothing from='public final fun <get-name> (): kotlin.String declared in <root>.MyRec'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:name type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
               receiver: GET_VAR '<this>: <root>.MyRec declared in <root>.MyRec.<get-name>' type=<root>.MyRec origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.MyRec) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.MyRec) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.MyRec
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.String [operator] declared in <root>.MyRec'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:name type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
             receiver: GET_VAR '<this>: <root>.MyRec declared in <root>.MyRec.component1' type=<root>.MyRec origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.MyRec, name:kotlin.String) returnType:<root>.MyRec
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.MyRec, name:kotlin.String) returnType:<root>.MyRec
       $this: VALUE_PARAMETER name:<this> type:<root>.MyRec
       VALUE_PARAMETER name:name index:0 type:kotlin.String
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/kt52677.fir.ir.txt b/compiler/testData/ir/irText/declarations/kt52677.fir.ir.txt
index 3f07235bf8c..3535b0a19dd 100644
--- a/compiler/testData/ir/irText/declarations/kt52677.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/kt52677.fir.ir.txt
@@ -51,13 +51,13 @@ FILE fqName:<root> fileName:/kt52677.kt
           RETURN type=kotlin.Nothing from='public final fun <get-id> (): @[MySerializable(c = ...)] <root>.Uuid1 declared in <root>.LoginSuccessPacket'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:id type:@[MySerializable(c = ...)] <root>.Uuid1 visibility:private [final]' type=@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1 origin=null
               receiver: GET_VAR '<this>: <root>.LoginSuccessPacket declared in <root>.LoginSuccessPacket.<get-id>' type=<root>.LoginSuccessPacket origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.LoginSuccessPacket) returnType:@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1 [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.LoginSuccessPacket) returnType:@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1 [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.LoginSuccessPacket
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): @[MySerializable(c = ...)] <root>.Uuid1 [operator] declared in <root>.LoginSuccessPacket'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:id type:@[MySerializable(c = ...)] <root>.Uuid1 visibility:private [final]' type=@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1 origin=null
             receiver: GET_VAR '<this>: <root>.LoginSuccessPacket declared in <root>.LoginSuccessPacket.component1' type=<root>.LoginSuccessPacket origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.LoginSuccessPacket, id:@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1) returnType:<root>.LoginSuccessPacket
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.LoginSuccessPacket, id:@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1) returnType:<root>.LoginSuccessPacket
       $this: VALUE_PARAMETER name:<this> type:<root>.LoginSuccessPacket
       VALUE_PARAMETER name:id index:0 type:@[MySerializable(c = CLASS_REFERENCE 'CLASS OBJECT name:UuidSerializer modality:FINAL visibility:public superTypes:[<root>.MySerializer<@[MySerializable(c = ...)] <root>.Uuid1>]' type=kotlin.reflect.KClass<<root>.UuidSerializer>)] <root>.Uuid1
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/declarations/parameters/dataClassMembers.fir.ir.txt b/compiler/testData/ir/irText/declarations/parameters/dataClassMembers.fir.ir.txt
index 75bf663d6a9..38ef438665b 100644
--- a/compiler/testData/ir/irText/declarations/parameters/dataClassMembers.fir.ir.txt
+++ b/compiler/testData/ir/irText/declarations/parameters/dataClassMembers.fir.ir.txt
@@ -32,19 +32,19 @@ FILE fqName:<root> fileName:/dataClassMembers.kt
           RETURN type=kotlin.Nothing from='public final fun <get-y> (): kotlin.String declared in <root>.Test'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
               receiver: GET_VAR '<this>: <root>.Test<T of <root>.Test> declared in <root>.Test.<get-y>' type=<root>.Test<T of <root>.Test> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>) returnType:T of <root>.Test [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>) returnType:T of <root>.Test [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test<T of <root>.Test>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): T of <root>.Test [operator] declared in <root>.Test'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Test visibility:private [final]' type=T of <root>.Test origin=null
             receiver: GET_VAR '<this>: <root>.Test<T of <root>.Test> declared in <root>.Test.component1' type=<root>.Test<T of <root>.Test> origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>) returnType:kotlin.String [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>) returnType:kotlin.String [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Test<T of <root>.Test>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.String [operator] declared in <root>.Test'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.String visibility:private [final]' type=kotlin.String origin=null
             receiver: GET_VAR '<this>: <root>.Test<T of <root>.Test> declared in <root>.Test.component2' type=<root>.Test<T of <root>.Test> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>, x:T of <root>.Test, y:kotlin.String) returnType:<root>.Test<T of <root>.Test>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Test<T of <root>.Test>, x:T of <root>.Test, y:kotlin.String) returnType:<root>.Test<T of <root>.Test>
       $this: VALUE_PARAMETER name:<this> type:<root>.Test<T of <root>.Test>
       VALUE_PARAMETER name:x index:0 type:T of <root>.Test
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt b/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
index cdba61cff0e..fff514ce870 100644
--- a/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/ArrayMap.fir.ir.txt
@@ -717,19 +717,19 @@ FILE fqName:<root> fileName:/ArrayMap.kt
             RETURN type=kotlin.Nothing from='public open fun <get-value> (): T of <root>.ArrayMapImpl.Entry declared in <root>.ArrayMapImpl.Entry'
               GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.ArrayMapImpl.Entry visibility:private [final]' type=T of <root>.ArrayMapImpl.Entry origin=null
                 receiver: GET_VAR '<this>: <root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> declared in <root>.ArrayMapImpl.Entry.<get-value>' type=<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> origin=null
-      FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>) returnType:kotlin.Int [operator]
+      FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>) returnType:kotlin.Int [operator]
         $this: VALUE_PARAMETER name:<this> type:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.ArrayMapImpl.Entry'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:key type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> declared in <root>.ArrayMapImpl.Entry.component1' type=<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> origin=null
-      FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>) returnType:T of <root>.ArrayMapImpl.Entry [operator]
+      FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>) returnType:T of <root>.ArrayMapImpl.Entry [operator]
         $this: VALUE_PARAMETER name:<this> type:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun component2 (): T of <root>.ArrayMapImpl.Entry [operator] declared in <root>.ArrayMapImpl.Entry'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.ArrayMapImpl.Entry visibility:private [final]' type=T of <root>.ArrayMapImpl.Entry origin=null
               receiver: GET_VAR '<this>: <root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> declared in <root>.ArrayMapImpl.Entry.component2' type=<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry> origin=null
-      FUN name:copy visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>, key:kotlin.Int, value:T of <root>.ArrayMapImpl.Entry) returnType:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>
+      FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>, key:kotlin.Int, value:T of <root>.ArrayMapImpl.Entry) returnType:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>
         $this: VALUE_PARAMETER name:<this> type:<root>.ArrayMapImpl.Entry<T of <root>.ArrayMapImpl.Entry>
         VALUE_PARAMETER name:key index:0 type:kotlin.Int
           EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/firProblems/MultiList.fir.ir.txt b/compiler/testData/ir/irText/firProblems/MultiList.fir.ir.txt
index 6d8fdb0a74a..46e68cfa75f 100644
--- a/compiler/testData/ir/irText/firProblems/MultiList.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/MultiList.fir.ir.txt
@@ -18,13 +18,13 @@ FILE fqName:<root> fileName:/MultiList.kt
           RETURN type=kotlin.Nothing from='public final fun <get-value> (): T of <root>.Some declared in <root>.Some'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.Some visibility:private [final]' type=T of <root>.Some origin=null
               receiver: GET_VAR '<this>: <root>.Some<T of <root>.Some> declared in <root>.Some.<get-value>' type=<root>.Some<T of <root>.Some> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Some<T of <root>.Some>) returnType:T of <root>.Some [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Some<T of <root>.Some>) returnType:T of <root>.Some [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Some<T of <root>.Some>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): T of <root>.Some [operator] declared in <root>.Some'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.Some visibility:private [final]' type=T of <root>.Some origin=null
             receiver: GET_VAR '<this>: <root>.Some<T of <root>.Some> declared in <root>.Some.component1' type=<root>.Some<T of <root>.Some> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Some<T of <root>.Some>, value:T of <root>.Some) returnType:<root>.Some<T of <root>.Some>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Some<T of <root>.Some>, value:T of <root>.Some) returnType:<root>.Some<T of <root>.Some>
       $this: VALUE_PARAMETER name:<this> type:<root>.Some<T of <root>.Some>
       VALUE_PARAMETER name:value index:0 type:T of <root>.Some
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/firProblems/SignatureClash.fir.ir.txt b/compiler/testData/ir/irText/firProblems/SignatureClash.fir.ir.txt
index 6a1b949c41b..5251566f1c2 100644
--- a/compiler/testData/ir/irText/firProblems/SignatureClash.fir.ir.txt
+++ b/compiler/testData/ir/irText/firProblems/SignatureClash.fir.ir.txt
@@ -110,13 +110,13 @@ FILE fqName:<root> fileName:/SignatureClash.kt
           RETURN type=kotlin.Nothing from='public final fun <get-delegate> (): <root>.Delegate declared in <root>.DataClass'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:delegate type:<root>.Delegate visibility:private [final]' type=<root>.Delegate origin=null
               receiver: GET_VAR '<this>: <root>.DataClass declared in <root>.DataClass.<get-delegate>' type=<root>.DataClass origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.DataClass) returnType:<root>.Delegate [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.DataClass) returnType:<root>.Delegate [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.DataClass
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): <root>.Delegate [operator] declared in <root>.DataClass'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:delegate type:<root>.Delegate visibility:private [final]' type=<root>.Delegate origin=null
             receiver: GET_VAR '<this>: <root>.DataClass declared in <root>.DataClass.component1' type=<root>.DataClass origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.DataClass, delegate:<root>.Delegate) returnType:<root>.DataClass
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.DataClass, delegate:<root>.Delegate) returnType:<root>.DataClass
       $this: VALUE_PARAMETER name:<this> type:<root>.DataClass
       VALUE_PARAMETER name:delegate index:0 type:<root>.Delegate
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/lambdas/destructuringInLambda.fir.ir.txt b/compiler/testData/ir/irText/lambdas/destructuringInLambda.fir.ir.txt
index 893f90b1555..83d304d42a0 100644
--- a/compiler/testData/ir/irText/lambdas/destructuringInLambda.fir.ir.txt
+++ b/compiler/testData/ir/irText/lambdas/destructuringInLambda.fir.ir.txt
@@ -29,19 +29,19 @@ FILE fqName:<root> fileName:/destructuringInLambda.kt
           RETURN type=kotlin.Nothing from='public final fun <get-y> (): kotlin.Int declared in <root>.A'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.<get-y>' type=<root>.A origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.A'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.A declared in <root>.A.component1' type=<root>.A origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.Int [operator] declared in <root>.A'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.A declared in <root>.A.component2' type=<root>.A origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.A, x:kotlin.Int, y:kotlin.Int) returnType:<root>.A
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.A, x:kotlin.Int, y:kotlin.Int) returnType:<root>.A
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       VALUE_PARAMETER name:x index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/regressions/kt45236.fir.ir.txt b/compiler/testData/ir/irText/regressions/kt45236.fir.ir.txt
index de69b144a58..b8c08db712d 100644
--- a/compiler/testData/ir/irText/regressions/kt45236.fir.ir.txt
+++ b/compiler/testData/ir/irText/regressions/kt45236.fir.ir.txt
@@ -50,19 +50,19 @@ FILE fqName:<root> fileName:/kt45236.kt
             RETURN type=kotlin.Nothing from='public open fun <get-value> (): T of <root>.NetRequestStatus.Error? declared in <root>.NetRequestStatus.Error'
               GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.NetRequestStatus.Error? visibility:private [final]' type=T of <root>.NetRequestStatus.Error? origin=null
                 receiver: GET_VAR '<this>: <root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> declared in <root>.NetRequestStatus.Error.<get-value>' type=<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> origin=null
-      FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>) returnType:kotlin.Throwable [operator]
+      FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>) returnType:kotlin.Throwable [operator]
         $this: VALUE_PARAMETER name:<this> type:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Throwable [operator] declared in <root>.NetRequestStatus.Error'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:error type:kotlin.Throwable visibility:private [final]' type=kotlin.Throwable origin=null
               receiver: GET_VAR '<this>: <root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> declared in <root>.NetRequestStatus.Error.component1' type=<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> origin=null
-      FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>) returnType:T of <root>.NetRequestStatus.Error? [operator]
+      FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>) returnType:T of <root>.NetRequestStatus.Error? [operator]
         $this: VALUE_PARAMETER name:<this> type:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='public final fun component2 (): T of <root>.NetRequestStatus.Error? [operator] declared in <root>.NetRequestStatus.Error'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:value type:T of <root>.NetRequestStatus.Error? visibility:private [final]' type=T of <root>.NetRequestStatus.Error? origin=null
               receiver: GET_VAR '<this>: <root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> declared in <root>.NetRequestStatus.Error.component2' type=<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error> origin=null
-      FUN name:copy visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>, error:kotlin.Throwable, value:T of <root>.NetRequestStatus.Error?) returnType:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>
+      FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>, error:kotlin.Throwable, value:T of <root>.NetRequestStatus.Error?) returnType:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>
         $this: VALUE_PARAMETER name:<this> type:<root>.NetRequestStatus.Error<T of <root>.NetRequestStatus.Error>
         VALUE_PARAMETER name:error index:0 type:kotlin.Throwable
           EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInForLoop.fir.ir.txt b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInForLoop.fir.ir.txt
index 25dae76933d..bf5e085709d 100644
--- a/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInForLoop.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/nullChecks/enhancedNullabilityInForLoop.fir.ir.txt
@@ -155,19 +155,19 @@ FILE fqName:<root> fileName:/enhancedNullabilityInForLoop.kt
           RETURN type=kotlin.Nothing from='public final fun <get-y> (): kotlin.Int declared in <root>.P'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.P declared in <root>.P.<get-y>' type=<root>.P origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.P) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.P) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.P
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>.P'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.P declared in <root>.P.component1' type=<root>.P origin=null
-    FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.P) returnType:kotlin.Int [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component2 visibility:public modality:FINAL <> ($this:<root>.P) returnType:kotlin.Int [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.P
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.Int [operator] declared in <root>.P'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
             receiver: GET_VAR '<this>: <root>.P declared in <root>.P.component2' type=<root>.P origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.P, x:kotlin.Int, y:kotlin.Int) returnType:<root>.P
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.P, x:kotlin.Int, y:kotlin.Int) returnType:<root>.P
       $this: VALUE_PARAMETER name:<this> type:<root>.P
       VALUE_PARAMETER name:x index:0 type:kotlin.Int
         EXPRESSION_BODY
diff --git a/compiler/testData/ir/irText/types/typeAliasWithUnsafeVariance.fir.ir.txt b/compiler/testData/ir/irText/types/typeAliasWithUnsafeVariance.fir.ir.txt
index 38f6289f35f..9431116e3e0 100644
--- a/compiler/testData/ir/irText/types/typeAliasWithUnsafeVariance.fir.ir.txt
+++ b/compiler/testData/ir/irText/types/typeAliasWithUnsafeVariance.fir.ir.txt
@@ -20,13 +20,13 @@ FILE fqName:<root> fileName:/typeAliasWithUnsafeVariance.kt
           RETURN type=kotlin.Nothing from='public final fun <get-action> (): kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> declared in <root>.Tag'
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:action type:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> visibility:private [final]' type=kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> origin=null
               receiver: GET_VAR '<this>: <root>.Tag<RenderingT of <root>.Tag> declared in <root>.Tag.<get-action>' type=<root>.Tag<RenderingT of <root>.Tag> origin=null
-    FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.Tag<RenderingT of <root>.Tag>) returnType:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> [operator]
+    FUN GENERATED_DATA_CLASS_MEMBER name:component1 visibility:public modality:FINAL <> ($this:<root>.Tag<RenderingT of <root>.Tag>) returnType:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> [operator]
       $this: VALUE_PARAMETER name:<this> type:<root>.Tag<RenderingT of <root>.Tag>
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> [operator] declared in <root>.Tag'
           GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:action type:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> visibility:private [final]' type=kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit> origin=null
             receiver: GET_VAR '<this>: <root>.Tag<RenderingT of <root>.Tag> declared in <root>.Tag.component1' type=<root>.Tag<RenderingT of <root>.Tag> origin=null
-    FUN name:copy visibility:public modality:FINAL <> ($this:<root>.Tag<RenderingT of <root>.Tag>, action:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit>) returnType:<root>.Tag<RenderingT of <root>.Tag>
+    FUN GENERATED_DATA_CLASS_MEMBER name:copy visibility:public modality:FINAL <> ($this:<root>.Tag<RenderingT of <root>.Tag>, action:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit>) returnType:<root>.Tag<RenderingT of <root>.Tag>
       $this: VALUE_PARAMETER name:<this> type:<root>.Tag<RenderingT of <root>.Tag>
       VALUE_PARAMETER name:action index:0 type:kotlin.Function1<RenderingT of <root>.Tag, kotlin.Unit>
         EXPRESSION_BODY