diff --git a/analysis/low-level-api-fir/testData/compilationPeers/functionCall.kt b/analysis/low-level-api-fir/testData/compilationPeers/functionCall.kt
index 0f6afaf1b15..725ec322b2f 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/functionCall.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/functionCall.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FILE: lib.kt
 package lib
 
diff --git a/analysis/low-level-api-fir/testData/compilationPeers/functionCallDeep.kt b/analysis/low-level-api-fir/testData/compilationPeers/functionCallDeep.kt
index cb2c22fdeb5..75784c5ca72 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/functionCallDeep.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/functionCallDeep.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FILE: base.kt
 package base
 
diff --git a/analysis/low-level-api-fir/testData/compilationPeers/inlinedClasses.kt b/analysis/low-level-api-fir/testData/compilationPeers/inlinedClasses.kt
index d014e92cd2b..021edf2d547 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/inlinedClasses.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/inlinedClasses.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FILE: base.kt
 package base
 
diff --git a/analysis/low-level-api-fir/testData/compilationPeers/libraryFunctionCall.kt b/analysis/low-level-api-fir/testData/compilationPeers/libraryFunctionCall.kt
index 5380efa2288..a38b4b563d3 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/libraryFunctionCall.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/libraryFunctionCall.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // WITH_STDLIB
 
 package test
diff --git a/analysis/low-level-api-fir/testData/compilationPeers/noInline.kt b/analysis/low-level-api-fir/testData/compilationPeers/noInline.kt
index 892dfbb7f51..c913b2f10e1 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/noInline.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/noInline.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FILE: lib.kt
 package lib
 
diff --git a/analysis/low-level-api-fir/testData/compilationPeers/propertyCall.kt b/analysis/low-level-api-fir/testData/compilationPeers/propertyCall.kt
index ee80206a357..53bf1250aa0 100644
--- a/analysis/low-level-api-fir/testData/compilationPeers/propertyCall.kt
+++ b/analysis/low-level-api-fir/testData/compilationPeers/propertyCall.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FILE: lib.kt
 package lib
 
diff --git a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallArgumentsExpression.kt b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallArgumentsExpression.kt
index ebbe2d96fee..4f9a41b674b 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallArgumentsExpression.kt
+++ b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallArgumentsExpression.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 package test
 
 open class Base(param: Nested) {
diff --git a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallee.kt b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallee.kt
index 0d3059e9b95..f04814d3cb6 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallee.kt
+++ b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeCallee.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 package test
 
 open class Base {
diff --git a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRef.kt b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRef.kt
index 3a64b45a3a3..5bc834182e0 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRef.kt
+++ b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRef.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 package test
 
 open class Base {
diff --git a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRefGenerics.kt b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRefGenerics.kt
index 72e7472e93d..e31f7d8b88d 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRefGenerics.kt
+++ b/analysis/low-level-api-fir/testData/contextCollector/classHeaderPositions/superTypeRefGenerics.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 package test
 
 open class Base<T> {
diff --git a/analysis/low-level-api-fir/testData/contextCollector/propertyDelegateInitializer.kt b/analysis/low-level-api-fir/testData/contextCollector/propertyDelegateInitializer.kt
index 1ef1124e1eb..34a59456084 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/propertyDelegateInitializer.kt
+++ b/analysis/low-level-api-fir/testData/contextCollector/propertyDelegateInitializer.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 package test
 
 interface MyInterface {
diff --git a/analysis/low-level-api-fir/testData/contextCollector/scripts/insideClassMember.kts b/analysis/low-level-api-fir/testData/contextCollector/scripts/insideClassMember.kts
index 78a2b46cf76..b5d78591423 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/scripts/insideClassMember.kts
+++ b/analysis/low-level-api-fir/testData/contextCollector/scripts/insideClassMember.kts
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 fun before_Fun() {}
 
 val before_Val = 10
diff --git a/analysis/low-level-api-fir/testData/contextCollector/scripts/insideTopLevelFunction.kts b/analysis/low-level-api-fir/testData/contextCollector/scripts/insideTopLevelFunction.kts
index 31040d8e782..9a7a59e888d 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/scripts/insideTopLevelFunction.kts
+++ b/analysis/low-level-api-fir/testData/contextCollector/scripts/insideTopLevelFunction.kts
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 fun before_Fun() {}
 
 val before_Val = 10
diff --git a/analysis/low-level-api-fir/testData/contextCollector/scripts/topLevel.kts b/analysis/low-level-api-fir/testData/contextCollector/scripts/topLevel.kts
index e83c3e77119..5f76758cd99 100644
--- a/analysis/low-level-api-fir/testData/contextCollector/scripts/topLevel.kts
+++ b/analysis/low-level-api-fir/testData/contextCollector/scripts/topLevel.kts
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 fun before_Fun() {}
 
 val before_Val = 10
diff --git a/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention.kt b/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention.kt
index c78901015a2..be8f6438a30 100644
--- a/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention.kt
+++ b/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 interface A {
     operator fun inc(): A
 }
diff --git a/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt b/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt
index ae8d8e9e6a9..3f28c67517a 100644
--- a/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt
+++ b/analysis/low-level-api-fir/testData/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 interface A {
     operator fun inc(): A
 }
diff --git a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/emptyArray.kt b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/emptyArray.kt
index f8b130b9d64..24282d29679 100644
--- a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/emptyArray.kt
+++ b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/emptyArray.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // WITH_STDLIB
 
 val d = empty<caret>Array<String>()
\ No newline at end of file
diff --git a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/flattenArray.kt b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/flattenArray.kt
index 4e90d35b91a..61e88090fb8 100644
--- a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/flattenArray.kt
+++ b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/flattenArray.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // WITH_STDLIB
 
 val d = arrayOf(arrayOf("1", "2")).fla<caret>tten()
\ No newline at end of file
diff --git a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/fromBits.kt b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/fromBits.kt
index 89bac850377..a6e1b56481a 100644
--- a/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/fromBits.kt
+++ b/analysis/low-level-api-fir/testData/getOrBuildFirForStdLib/fromBits.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // WITH_STDLIB
 
 val d = Double.from<caret>Bits(0x400921fb54442d18L)
\ No newline at end of file
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/localFunction.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/localFunction.kt
index 9e21a272489..e25795fcc3a 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/localFunction.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/localFunction.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FUNCTION: bar
 
 package test.locals
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/memberFunction.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/memberFunction.kt
index 2b08c4d1e8f..c9de29c13b9 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/memberFunction.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/memberFunction.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FUNCTION: foo
 
 package test.classes
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/memberProperty.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/memberProperty.kt
index 82f018abfce..4e304b774af 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/memberProperty.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/memberProperty.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // PROPERTY: foo
 
 package test.classes
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/paramemtersCatching.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/paramemtersCatching.kt
index 9f4b9395061..2a665620cd3 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/paramemtersCatching.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/paramemtersCatching.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FUNCTION: foo
 
 package test.classes
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleFunction.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleFunction.kt
index 40b08c53763..4ffe7e6468c 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleFunction.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleFunction.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // FUNCTION: foo
 
 package test
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVal.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVal.kt
index 24d38005dda..5efc88c0425 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVal.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVal.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // PROPERTY: foo
 
 package test
diff --git a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVar.kt b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVar.kt
index 3d08d595614..5c3dae0ebd8 100644
--- a/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVar.kt
+++ b/analysis/low-level-api-fir/testData/partialRawBuilder/simpleVar.kt
@@ -1,8 +1,3 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
 // PROPERTY: foo
 
 package test