src/language-js/utils/index.js/getCommentTestFunction
const getCommentTestFunction = (flags, fn) => {
  if (typeof flags === "function") {
    fn = flags;
    flags = 0;
  }
  if (flags || fn) {
    return (comment, index, comments) =>
      !(
        (flags & CommentCheckFlags.Leading && !comment.leading) ||
        (flags & CommentCheckFlags.Trailing && !comment.trailing) ||
        (flags & CommentCheckFlags.Dangling &&
          (comment.leading || comment.trailing)) ||
        (flags & CommentCheckFlags.Block && !isBlockComment(comment)) ||
        (flags & CommentCheckFlags.Line && !isLineComment(comment)) ||
        (flags & CommentCheckFlags.First && index !== 0) ||
        (flags & CommentCheckFlags.Last && index !== comments.length - 1) ||
        (flags & CommentCheckFlags.PrettierIgnore &&
          !isPrettierIgnoreComment(comment)) ||
        (fn && !fn(comment))
      );
  }
};