[FIR IDE] Remove LightClassProvider

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/lightClasses/IdeLightClassInheritanceHelper.kt

@@ -39,14 +39,16 @@ class IdeLightClassInheritanceHelper : LightClassInheritanceHelper {
         if (lightClass.manager.areElementsEquivalent(baseClass, lightClass)) return NO_MATCH
 
         val classOrObject = lightClass.kotlinOrigin ?: return UNSURE
+
+        if (checkDeep && baseClass.qualifiedName == CommonClassNames.JAVA_LANG_OBJECT) {
+            return MATCH
+        }
+
         val entries = classOrObject.superTypeListEntries
         val hasSuperClass = entries.any { it is KtSuperTypeCallEntry }
         if (baseClass.qualifiedName == classOrObject.defaultJavaAncestorQualifiedName() && (!hasSuperClass || checkDeep)) {
             return MATCH
         }
-        if (checkDeep && baseClass.qualifiedName == CommonClassNames.JAVA_LANG_OBJECT) {
-            return MATCH
-        }
         val amongEntries = isAmongEntries(baseClass, entries)
         return when {
             !checkDeep -> amongEntries

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/lightClasses/decompiledDeclarations/KtLightClassForDecompiledDeclaration.kt

@@ -10,28 +10,27 @@ import com.intellij.psi.*
 import com.intellij.psi.impl.PsiClassImplUtil
 import com.intellij.psi.impl.PsiImplUtil
 import com.intellij.psi.impl.PsiSuperMethodImplUtil
-import com.intellij.psi.impl.source.PsiExtensibleClass
 import com.intellij.psi.javadoc.PsiDocComment
 import com.intellij.psi.scope.PsiScopeProcessor
 import com.intellij.psi.util.PsiUtil
 import org.jetbrains.annotations.NonNls
 import org.jetbrains.kotlin.analyzer.KotlinModificationTrackerService
 import org.jetbrains.kotlin.asJava.classes.KotlinClassInnerStuffCache
-import org.jetbrains.kotlin.asJava.classes.KtLightClass
 import org.jetbrains.kotlin.asJava.classes.LightClassesLazyCreator
 import org.jetbrains.kotlin.asJava.classes.lazyPub
-import org.jetbrains.kotlin.asJava.elements.KtLightElementBase
+import org.jetbrains.kotlin.idea.caches.lightClasses.decompiledDeclarations.KtLightEnumEntryForDecompiledDeclaration
+import org.jetbrains.kotlin.idea.caches.lightClasses.decompiledDeclarations.KtLightFieldForDecompiledDeclaration
+import org.jetbrains.kotlin.idea.caches.lightClasses.decompiledDeclarations.KtLightMethodForDecompiledDeclaration
 import org.jetbrains.kotlin.idea.decompiler.classFile.KtClsFile
 import org.jetbrains.kotlin.load.java.structure.LightClassOriginKind
 import org.jetbrains.kotlin.psi.KtClassOrObject
-import org.jetbrains.kotlin.idea.caches.lightClasses.decompiledDeclarations.*
 
 open class KtLightClassForDecompiledDeclaration(
     override val clsDelegate: PsiClass,
     private val clsParent: PsiElement,
     private val file: KtClsFile,
-    final override val kotlinOrigin: KtClassOrObject?
-) : KtLightElementBase(clsParent), PsiClass, KtLightClass, PsiExtensibleClass {
+    kotlinOrigin: KtClassOrObject?
+) : KtLightClassForDecompiledDeclarationBase(clsDelegate, clsParent, kotlinOrigin) {
 
     private val myInnersCache = KotlinClassInnerStuffCache(
         myClass = this,

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

@@ -250,6 +250,8 @@ open class IDEKotlinAsJavaSupport(private val project: Project) : KotlinAsJavaSu
         }
     }
 
+    override fun getFakeLightClass(classOrObject: KtClassOrObject): KtFakeLightClass =
+        KtDescriptorBasedFakeLightClass(classOrObject)
 
     // NOTE: this is a hacky solution to the following problem:
     // when building this light class resolver will be built by the first file in the list