Function defer

test/angular/1.5/angular.js:16638–16645

* @ngdoc method * @name ng.$q#defer * @kind function * * @description * Creates a `Deferred` object which represents a task which will finish in the future. * * @returns {Deferred} Returns a new instance of deferred.

()

   * @returns {Deferred} Returns a new instance of deferred.
   */
  function defer() {
    var d = new Deferred();
    //Necessary to support unbound execution :/
    d.resolve = simpleBind(d, d.resolve);
    d.reject = simpleBind(d, d.reject);
    d.notify = simpleBind(d, d.notify);
    return d;
  }

  function Promise() {
    this.$$state = { status: 0 };