Promise init callback takes resolve and reject functions

LayoutTests/fast/js/resources/Promise-reject-in-workers.js

 importScripts('./js-test-pre.js');
 
 description('Test Promise.');
 
 jsTestIsAsync = true;
 
-var resolver;
-var promise = new Promise(function(r) { resolver = r; });
+var reject;
+var promise = new Promise(function(_, r) { reject = r; });
 var promiseState = 'pending';
 var promiseResult = undefined;
 promise.then(function(result) {
   promiseState = 'fulfilled';
   promiseResult = result;
 }, function(result) {
   promiseState = 'rejected';
   promiseResult = result;
 });
 
 shouldBeEqualToString('promiseState', 'pending');
 
-resolver.reject('hello');
+reject('hello');
 
 shouldBeEqualToString('promiseState', 'pending');
 
 promise.then(function() {
   testFailed('promise is fulfilled.');
   finishJSTest();
 }, function() {
   shouldBeEqualToString('promiseState', 'rejected');
   shouldBeEqualToString('promiseResult', 'hello');
   finishJSTest();
 });