Method maybeExpandMessageArgs_

src/utils/log.js:333–337

* @param {!Array} args * @return {!Array} * @private

(args)

   * @private
   */
  maybeExpandMessageArgs_(args) {
    return isArray(args[0])
      ? this.expandMessageArgs_(/** @type {!Array} */ (args[0]))
      : args;
  }

  /**
   * Either redirects a pair of (errorId, ...args) to a URL where the full