Revert "[light classes] drop old light classes and backend: iteration #1"

This reverts commit 3cb2df9360.

compiler/tests/org/jetbrains/kotlin/asJava/KotlinLightClassTest.kt

@@ -1,6 +1,17 @@
 /*
- * 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.
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package org.jetbrains.kotlin.asJava
@@ -13,8 +24,8 @@ import java.io.File
 
 class KotlinLightClassTest : KotlinAsJavaTestBase() {
     override fun getKotlinSourceRoots(): List<File> = listOf(
-        File("compiler/testData/asJava/lightClassStructure/ClassObject.kt"),
-        File("compiler/testData/asJava/lightClasses/ideRegression/ImplementingMap.kt")
+            File("compiler/testData/asJava/lightClassStructure/ClassObject.kt"),
+            File("compiler/testData/asJava/lightClasses/ideRegression/ImplementingMap.kt")
     )
 
     private val key = Key.create<String>("testKey")