@Nullable
  protected PsiElement findFileSuppression(PsiElement anchor, String id, PsiElement originalElement) {
    final PsiFile file = anchor.getContainingFile();
    if (file instanceof XmlFile) {
      final XmlDocument document = ((XmlFile)file).getDocument();
      final XmlTag rootTag = document != null ? document.getRootTag() : null;
      PsiElement leaf = rootTag != null ? rootTag.getPrevSibling() : file.findElementAt(0);
      return findSuppressionLeaf(leaf, id, 0);
    }
    return null;
  }
@Nullable
  protected PsiElement findFileSuppression(PsiElement anchor, String id, PsiElement originalElement)