@Nullable
  private static XmlTag getTagByInjectedFile(final PsiFile file) {
    final SmartPsiElementPointer pointer = file.getUserData(FileContextUtil.INJECTED_IN_ELEMENT);
    final PsiElement element = pointer == null? null : pointer.getElement();
    return element instanceof XmlText ? ((XmlText)element).getParentTag() : null;
  }
@Nullable
  private static XmlTag getTagByInjectedFile(final PsiFile file)