@NotNull
 private static FqName getClassRelativeName(@NotNull JetClassOrObject decompiledClassOrObject) {
   Name name = decompiledClassOrObject.getNameAsName();
   assert name != null;
   JetClassOrObject parent =
       PsiTreeUtil.getParentOfType(decompiledClassOrObject, JetClassOrObject.class, true);
   if (parent == null) {
     assert decompiledClassOrObject.isTopLevel();
     return FqName.topLevel(name);
   }
   return getClassRelativeName(parent).child(name);
 }