IC mangling: Replace compiler hack with configuration flag

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt

@@ -81,6 +81,7 @@ class IDELightClassGenerationSupport(project: Project) : LightClassGenerationSup
             KotlinTypeMapper(
                 BindingContext.EMPTY, ClassBuilderMode.LIGHT_CLASSES,
                 moduleName, languageVersionSettings,
+                useOldInlineClassesManglingScheme = false,
                 jvmTarget = JvmTarget.JVM_1_8,
                 typePreprocessor = KotlinType::cleanFromAnonymousTypes,
                 namePreprocessor = ::tryGetPredefinedName

idea/jvm-debugger/jvm-debugger-util/src/org/jetbrains/kotlin/idea/debugger/FileRankingCalculator.kt

@@ -342,7 +342,8 @@ abstract class FileRankingCalculator(private val checkClassFqName: Boolean = tru
             bindingContext,
             ClassBuilderMode.LIGHT_CLASSES,
             "debugger",
-            KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT // TODO use proper LanguageVersionSettings
+            KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT, // TODO use proper LanguageVersionSettings
+            useOldInlineClassesManglingScheme = false
         )
     }