FIR IDE: use CallableId for KtCallableSymbol instead of FqName

core/compiler.common/src/org/jetbrains/kotlin/name/CallableId.kt

@@ -18,6 +18,14 @@ data class CallableId(
         val PACKAGE_FQ_NAME_FOR_LOCAL = FqName.topLevel(LOCAL_NAME)
     }
 
+    /**
+     * Return `true` if corresponding declaration is itself local or it is a member of local class
+     * Otherwise, returns `false`
+     */
+    val isLocal: Boolean
+        get() = packageName == PACKAGE_FQ_NAME_FOR_LOCAL
+                || classId?.isLocal == true
+
     var classId: ClassId? = null
         get() {
             if (field == null && className != null) {