JS: fix definition nested classes inside interfaces

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/NestedTypesTest.java

@@ -34,6 +34,10 @@ public class NestedTypesTest extends SingleFileTranslationTest {
         checkFooBoxIsOk();
     }
 
+    public void testNestedInInterface() throws Exception {
+        checkFooBoxIsOk();
+    }
+
     public void testInner() throws Exception {
         checkFooBoxIsOk();
     }

js/js.translator/testData/kotlin_lib_ecma5.js

@@ -224,7 +224,7 @@ var Kotlin = {};
         copyProperties(obj.prototype, obj.$metadata$.functions);
         Object.defineProperty(obj, "object", {get: class_object, configurable: true});
 
-        defineNestedTypes(constructor, obj.$metadata$.types);
+        defineNestedTypes(obj, obj.$metadata$.types);
         return obj;
     };
 

js/js.translator/testData/nestedTypes/cases/nestedInInterface.kt

@@ -0,0 +1,33 @@
+package foo
+
+interface A {
+    fun foo(): String
+    fun bar() = "A.bar;"
+
+    class B {
+        fun foo() = "A.B.foo;"
+        fun bar() = "A.B.bar;"
+    }
+
+    class C : A {
+        override fun foo() = "A.C.foo;"
+    }
+
+    class D : A {
+        override fun foo() = "A.D.foo;"
+        override fun bar() = "A.D.bar;"
+    }
+}
+
+fun box(): String {
+    assertEquals("A.B.foo;", A.B().foo())
+    assertEquals("A.B.bar;", A.B().bar())
+
+    assertEquals("A.C.foo;", A.C().foo())
+    assertEquals("A.bar;", A.C().bar())
+
+    assertEquals("A.D.foo;", A.D().foo())
+    assertEquals("A.D.bar;", A.D().bar())
+
+    return "OK"
+}