cleanup(change_detection): make Locals private

Closes #4321

modules/angular2/src/core/change_detection.ts

@@ -10,8 +10,6 @@ export {
   ExpressionChangedAfterItHasBeenCheckedException,
   ChangeDetectionError,
 
-  ChangeDetector,
-  Locals,
   ChangeDetectorRef,
 
   WrappedValue,

modules/angular2/src/core/change_detection/parser/locals.ts

@@ -2,6 +2,9 @@ import {isPresent} from 'angular2/src/core/facade/lang';
 import {BaseException} from 'angular2/src/core/facade/exceptions';
 import {ListWrapper, MapWrapper} from 'angular2/src/core/facade/collection';
 
+/**
+ * @private
+ */
 export class Locals {
   constructor(public parent: Locals, public current: Map<any, any>) {}
 

modules/angular2/src/core/life_cycle/life_cycle.ts

@@ -39,6 +39,9 @@ export class LifeCycle {
   _enforceNoNewChanges: boolean;
   _runningTick: boolean = false;
 
+  /**
+   * @private
+   */
   constructor(changeDetector: ChangeDetector = null, enforceNoNewChanges: boolean = false) {
     this._changeDetectors = [];
     if (isPresent(changeDetector)) {