private static void grabCommentsBeforeColon(PsiElement label, CommentTracker ct, StringBuilder sb) {
      if (label != null) {
        PsiElement child = label.getLastChild();
        while (child != null && !child.textMatches(":")) {
          child = child.getPrevSibling();
        }
        if (child != null) {
          sb.append(ct.commentsBefore(child));
        }
      }
    }
private static void grabCommentsBeforeColon(PsiElement label, CommentTracker ct, StringBuilder sb)