refactor(ListWrapper): drop forEach and removeLast

Closes #4584

modules/angular2/test/core/change_detection/change_detector_spec.ts

@@ -22,7 +22,7 @@ import {
   normalizeBool
 } from 'angular2/src/core/facade/lang';
 import {BaseException, WrappedException} from 'angular2/src/core/facade/exceptions';
-import {ListWrapper, MapWrapper, StringMapWrapper} from 'angular2/src/core/facade/collection';
+import {MapWrapper, StringMapWrapper} from 'angular2/src/core/facade/collection';
 
 import {
   ChangeDispatcher,
@@ -67,7 +67,7 @@ const _DEFAULT_CONTEXT = CONST_EXPR(new Object());
  * can be found in the generated/change_detector_classes library.
  */
 export function main() {
-  ListWrapper.forEach(['dynamic', 'JIT', 'Pregen'], (cdType) => {
+  ['dynamic', 'JIT', 'Pregen'].forEach(cdType => {
     if (cdType == "JIT" && IS_DART) return;
     if (cdType == "Pregen" && !IS_DART) return;
 

modules/angular2/test/core/facade/async_spec.ts

@@ -13,7 +13,6 @@ import {
 } from 'angular2/test_lib';
 
 import {ObservableWrapper, EventEmitter, PromiseWrapper} from 'angular2/src/core/facade/async';
-import {ListWrapper} from 'angular2/src/core/facade/collection';
 
 export function main() {
   describe('EventEmitter', () => {
@@ -88,7 +87,7 @@ export function main() {
            one.resolve('one');
          }));
 
-      ListWrapper.forEach([null, true, false, 10, 'thing', {}, []], (abruptCompletion) => {
+      [null, true, false, 10, 'thing', {}, []].forEach(abruptCompletion => {
         it(`should treat "${abruptCompletion}" as an "abrupt completion"`,
            inject([AsyncTestCompleter], (async) => {
              var one = PromiseWrapper.completer();

modules/angular2/test/web_workers/shared/mock_event_emitter.ts

@@ -1,5 +1,4 @@
 import {EventEmitter} from 'angular2/src/core/facade/async';
-import {ListWrapper} from 'angular2/src/core/facade/collection';
 
 export class MockEventEmitter extends EventEmitter {
   private _nextFns: Function[] = [];
@@ -11,9 +10,7 @@ export class MockEventEmitter extends EventEmitter {
     return new MockDisposable();
   }
 
-  next(value: any) {
-    ListWrapper.forEach(this._nextFns, (fn) => { fn(value); });
-  }
+  next(value: any) { this._nextFns.forEach(fn => fn(value)); }
 }
 
 class MockDisposable {