protected ArrayList<UsageInfo> detectTurnToSuperRefs(PsiReference[] refs, final ArrayList<UsageInfo> result) {
    buildGraph(refs);

    for (PsiReference ref : refs) {
      final PsiElement element = ref.getElement();
      if (canTurnToSuper(element)) {
        result.add(new TurnToSuperReferenceUsageInfo(element));
      }
    }
    return result;
  }
protected ArrayList<UsageInfo> detectTurnToSuperRefs(PsiReference[] refs, final ArrayList<UsageInfo> result)