code: function (relativeName, fn) {
              relativeName = Utils.getModNamesAsArray(relativeName);
              return KISSY.use(Utils.normalDepModuleName(this.name, relativeName), fn);
          }
docs: resolve module by name.
  @param {String|String[]} relativeName relative module's name
  @param {Function|Object} fn KISSY.use callback
  @returns {String} resolved module name