[FIR] Consider enum entry nested classes as local

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/ConverterUtil.kt

@@ -89,6 +89,7 @@ inline fun isClassLocal(classNode: LighterASTNode, getParent: LighterASTNode.()
                 parent?.tokenType == KT_FILE -> return true
                 parent?.tokenType == CLASS_BODY && !(grandParent?.tokenType == OBJECT_DECLARATION && grandParent?.getParent()?.tokenType == OBJECT_LITERAL) -> return true
                 parent?.tokenType == BLOCK && grandParent?.tokenType == SCRIPT -> return true
+                parent?.tokenType == ENUM_ENTRY -> return true
             }
         }
         if (tokenType == BLOCK) {

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/RawFirBuilder.kt

@@ -648,8 +648,10 @@ class RawFirBuilder(
         }
 
         override fun visitClassOrObject(classOrObject: KtClassOrObject, data: Unit): FirElement {
-            return withChildClassName(classOrObject.nameAsSafeName, classOrObject.isLocal) {
-
+            return withChildClassName(
+                classOrObject.nameAsSafeName,
+                classOrObject.isLocal || classOrObject.getStrictParentOfType<KtEnumEntry>() != null
+            ) {
                 val classKind = when (classOrObject) {
                     is KtObjectDeclaration -> ClassKind.OBJECT
                     is KtClass -> when {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg/ControlFlowGraphBuilder.kt

@@ -288,7 +288,7 @@ class ControlFlowGraphBuilder {
     fun exitLocalClass(klass: FirRegularClass): Pair<LocalClassExitNode, ControlFlowGraph> {
         val graph = exitClass(klass)
         val node = createLocalClassExitNode(klass).also {
-            addNewSimpleNode(it)
+            addNewSimpleNodeIfPossible(it)
         }
         return node to graph
     }