private static void addElementToResult(@NotNull XmlElementDescriptor descriptor, CompletionResultSet result) {
    XmlTagInsertHandler insertHandler = XmlTagInsertHandler.INSTANCE;
    if (descriptor instanceof XmlElementDescriptorImpl) {
      String name = descriptor.getName();
      if (name != null) {
        insertHandler = new ExtendedTagInsertHandler(name, ((XmlElementDescriptorImpl)descriptor).getNamespace(), null);
      }
    }
    result.addElement(createLookupElement(descriptor).withInsertHandler(insertHandler));
  }
private static void addElementToResult(@NotNull XmlElementDescriptor descriptor, CompletionResultSet result)