JS: fix some minor issues in new flat translator

js/js.translator/testData/box/reflection/jsClassName.kt

@@ -5,10 +5,10 @@ fun testWithInstance() {
     assertEquals("B", B().jsClass.name)
     assertEquals("O", O.jsClass.name)
     assertEquals("E", E.X.jsClass.name)
-    assertEquals("Y", E.Y.jsClass.name)
+    assertEquals("E\$Y", E.Y.jsClass.name)
 // TODO uncomment after KT-13338 is fixed
 //    assertEquals("E", E.Z.jsClass.name)
-    assertEquals("Q", R().jsClass.name)
+    assertEquals("R", R().jsClass.name)
 }
 
 fun testWithClassReference() {
@@ -17,7 +17,7 @@ fun testWithClassReference() {
     assertEquals("O", jsClass<O>().name)
     assertEquals("I", jsClass<I>().name)
     assertEquals("E", jsClass<E>().name)
-    assertEquals("Q", jsClass<R>().name)
+    assertEquals("R", jsClass<R>().name)
 }
 
 fun box(): String {