diff --git a/compiler/testData/diagnostics/tests/redeclarations/shadowedExtension/extensionOnErrorType.kt b/compiler/testData/diagnostics/tests/redeclarations/shadowedExtension/extensionOnErrorType.kt
index 79f828acfd1..006ee80cd51 100644
--- a/compiler/testData/diagnostics/tests/redeclarations/shadowedExtension/extensionOnErrorType.kt
+++ b/compiler/testData/diagnostics/tests/redeclarations/shadowedExtension/extensionOnErrorType.kt
@@ -6,4 +6,4 @@ interface G<T> {
 }
 
 fun <!WRONG_NUMBER_OF_TYPE_ARGUMENTS!>G<!>.foo() {}
-val <!WRONG_NUMBER_OF_TYPE_ARGUMENTS!>G<!>.bar: Int get() = 42
\ No newline at end of file
+val <!WRONG_NUMBER_OF_TYPE_ARGUMENTS!>G<!>.bar: Int get() = 42
diff --git a/compiler/testData/diagnostics/tests/resolve/CycleInTypeArgs.kt b/compiler/testData/diagnostics/tests/resolve/CycleInTypeArgs.kt
index 7065ae0cf1a..47e10ceebe0 100644
--- a/compiler/testData/diagnostics/tests/resolve/CycleInTypeArgs.kt
+++ b/compiler/testData/diagnostics/tests/resolve/CycleInTypeArgs.kt
@@ -2,4 +2,4 @@
 
 class Class1<T : Class2<Class1<<!UNRESOLVED_REFERENCE!>X<!>>>>
 
-class Class2<T : Class1<Class2<<!UNRESOLVED_REFERENCE!>X<!>>>>
\ No newline at end of file
+class Class2<T : Class1<Class2<<!UNRESOLVED_REFERENCE!>X<!>>>>
diff --git a/compiler/testData/diagnostics/tests/subtyping/kt304.kt b/compiler/testData/diagnostics/tests/subtyping/kt304.kt
index f8eb56c0730..5387c051147 100644
--- a/compiler/testData/diagnostics/tests/subtyping/kt304.kt
+++ b/compiler/testData/diagnostics/tests/subtyping/kt304.kt
@@ -6,4 +6,4 @@ open class Foo() : <!WRONG_NUMBER_OF_TYPE_ARGUMENTS!>Bar<!>() {
 }
 
 open class Bar<T>() {
-}
\ No newline at end of file
+}
diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirIdenticalChecker.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirIdenticalChecker.kt
index b3008bcdf96..b0cc9954135 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirIdenticalChecker.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirIdenticalChecker.kt
@@ -33,7 +33,7 @@ class FirIdenticalChecker(testServices: TestServices) : AfterAnalysisChecker(tes
             val classicFile = helper.getClassicFileToCompare(testDataFile)
             if (helper.contentsAreEquals(classicFile, firFile)) {
                 helper.deleteFirFile(testDataFile)
-                helper.addDirectiveToClassicFileAndAssert(testDataFile)
+                helper.addDirectiveToClassicFileAndAssert(classicFile)
             }
         } else {
             removeFirFileIfExist(testDataFile)