private static boolean processUsages(PsiElement tag, XmlAttributeValue value, LocalSearchScope scope) {
      final Query<PsiReference> query = ReferencesSearch.search(tag, scope, true);
      for (PsiReference reference : query) {
        final PsiElement e = reference.getElement();
        if (e != value) {
          final XmlTag t = PsiTreeUtil.getParentOfType(e, XmlTag.class);
          if (t != null && !PsiTreeUtil.isAncestor(tag, t, true)) {
            return true;
          }
        }
      }
      return false;
    }
private static boolean processUsages(PsiElement tag, XmlAttributeValue value, LocalSearchScope scope)