@SuppressWarnings("MethodOverloadsMethodOfSuperclass")
  public @Nullable DomFileDescription<?> getDomFileDescription(PsiElement element) {
    if (element instanceof XmlElement) {
      final PsiFile psiFile = element.getContainingFile();
      if (psiFile instanceof XmlFile) {
        return getDomFileDescription((XmlFile)psiFile);
      }
    }
    return null;
  }
@SuppressWarnings("MethodOverloadsMethodOfSuperclass")
  public @Nullable DomFileDescription<?> getDomFileDescription(PsiElement element)