Show location for local classes in Goto Class

#KT-7954 Fixed

idea/src/org/jetbrains/kotlin/idea/presentation/DeclarationPresenters.kt

@@ -39,9 +39,10 @@ open class KotlinDefaultNamedDeclarationPresentation(private val declaration: Kt
     override fun getPresentableText() = declaration.name
 
     override fun getLocationString(): String? {
-        if (declaration is KtFunction && declaration.isLocal) {
-            val containingDeclaration = declaration.getStrictParentOfType<KtDeclaration>() ?: return null
-            return "(in ${containingDeclaration.name})"
+        if ((declaration is KtFunction && declaration.isLocal) || (declaration is KtClassOrObject && declaration.isLocal)) {
+            val containingDeclaration = declaration.getStrictParentOfType<KtNamedDeclaration>() ?: return null
+            val containerName = containingDeclaration.fqName ?: containingDeclaration.name
+            return "(in $containerName)"
         }
         val name = declaration.fqName ?: return null
         val qualifiedContainer = name.parent().toString()

idea/testData/navigation/gotoClass/localDeclarations.kt

@@ -11,7 +11,7 @@ fun foo() {
 }
 
 // SEARCH_TEXT: Local
-// REF: LocalClass
-// REF: LocalObject
-// REF: LocalTrait
-// REF: LocalTraitWithImpl
+// REF: (in foo).LocalClass
+// REF: (in foo).LocalObject
+// REF: (in foo).LocalTrait
+// REF: (in foo).LocalTraitWithImpl