@Override
  public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
    if (myIsTag) {
      removeXmlTag((XmlTag)descriptor.getPsiElement(), project);
    } else {
      final DomElement domElement = DomManager.getDomManager(project).getDomElement((XmlAttribute)descriptor.getPsiElement());
      assert domElement != null;
      domElement.undefine();
    }
  }
@Override
  public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor)