Make Kotlin light classes pass "element instanceof StubBasedPsiElement" in LocalSearchScope scope

idea/testData/navigation/implementations/multifile/ImplementJavaInnerInterface/ImplementJavaInnerInterface.java

@@ -0,0 +1,21 @@
+public class ImplementJavaInnerInterface {
+    interface Test {
+        void foo();
+    }
+
+    void test() {
+        Test test = new Test() {
+            @Override
+            public void foo() {
+
+            }
+        };
+    }
+
+    void usage(Test test) {
+        test.<caret>foo();
+    }
+}
+
+// REF: (in KotlinTest).foo()
+// REF: <anonymous>.foo()

idea/testData/navigation/implementations/multifile/ImplementJavaInnerInterface/ImplementJavaInnerInterface.kt

@@ -0,0 +1,3 @@
+class KotlinTest : ImplementJavaInnerInterface.Test {
+    override fun foo() {}
+}