Replace appendln with appendLine in project

compiler/fir/analysis-tests/tests/org/jetbrains/kotlin/fir/AbstractFirLoadCompiledKotlin.kt

@@ -66,7 +66,7 @@ abstract class AbstractFirLoadCompiledKotlin : AbstractFirResolveWithSessionTest
         for (name in provider.getAllCallableNamesInPackage(packageFqName)) {
             for (symbol in provider.getTopLevelCallableSymbols(packageFqName, name)) {
                 symbol.fir.accept(firRenderer)
-                builder.appendln()
+                builder.appendLine()
             }
         }
 
@@ -75,7 +75,7 @@ abstract class AbstractFirLoadCompiledKotlin : AbstractFirResolveWithSessionTest
                 provider.getClassLikeSymbolByFqName(ClassId.topLevel(packageFqName.child(name))) as FirClassSymbol?
                     ?: continue
             classLikeSymbol.fir.accept(firRenderer)
-            builder.appendln()
+            builder.appendLine()
         }
 
         val testDataDirectoryPath =

compiler/fir/analysis-tests/tests/org/jetbrains/kotlin/fir/BuiltInsDeserializationForFirTestCase.kt

@@ -42,7 +42,7 @@ class BuiltInsDeserializationForFirTestCase : AbstractFirResolveWithSessionTestC
         for (name in provider.getAllCallableNamesInPackage(packageFqName)) {
             for (symbol in provider.getTopLevelCallableSymbols(packageFqName, name)) {
                 symbol.fir.accept(firRenderer)
-                builder.appendln()
+                builder.appendLine()
             }
         }
 
@@ -51,7 +51,7 @@ class BuiltInsDeserializationForFirTestCase : AbstractFirResolveWithSessionTestC
                 provider.getClassLikeSymbolByFqName(ClassId.topLevel(packageFqName.child(name))) as FirClassSymbol?
                     ?: continue
             classLikeSymbol.fir.accept(firRenderer)
-            builder.appendln()
+            builder.appendLine()
         }
 
 

compiler/fir/analysis-tests/tests/org/jetbrains/kotlin/fir/java/AbstractFirOldFrontendLightClassesTest.kt

@@ -44,7 +44,7 @@ abstract class AbstractFirOldFrontendLightClassesTest : AbstractFirOldFrontendDi
             )
 
             psiClass.appendMirrorText(0, stringBuilder)
-            stringBuilder.appendln()
+            stringBuilder.appendLine()
         }
 
         val expectedPath = testDataFile.path.replace(".kt", ".txt")