code: function makeOptionsHot (id, options) {
    injectHook(options, initHookName, function () {
      map[id].instances.push(this)
    })
    injectHook(options, 'beforeDestroy', function () {
      var instances = map[id].instances
      instances.splice(instances.indexOf(this), 1)
    })
  }
docs: Make a Component options object hot.
  
  @param {String} id
  @param {Object} options