refactor(EventEmitter): rename .next() to .emit()

BREAKING CHANGE:

EventEmitter#next(value) is deprecated, use EventEmitter#emit(value)
instead.

Closes #4287

Closes #5302

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

@@ -32,7 +32,7 @@ export function main() {
            async.done();
          });
 
-         ObservableWrapper.callNext(emitter, 99);
+         ObservableWrapper.callEmit(emitter, 99);
        }));
 
     it("should call the throw callback", inject([AsyncTestCompleter], (async) => {
@@ -58,7 +58,7 @@ export function main() {
       var called = false;
       ObservableWrapper.subscribe(emitter, (value) => { called = true; });
 
-      ObservableWrapper.callNext(emitter, 99);
+      ObservableWrapper.callEmit(emitter, 99);
       expect(called).toBe(false);
     });
 
@@ -71,7 +71,7 @@ export function main() {
            async.done();
          });
          log.push(1);
-         ObservableWrapper.callNext(e, 2);
+         ObservableWrapper.callEmit(e, 2);
          log.push(3);
        }));
 
@@ -80,7 +80,7 @@ export function main() {
       var log = [];
       ObservableWrapper.subscribe(e, (x) => { log.push(x); });
       log.push(1);
-      ObservableWrapper.callNext(e, 2);
+      ObservableWrapper.callEmit(e, 2);
       log.push(3);
       expect(log).toEqual([1, 2, 3]);
     });

modules/angular2/test/core/linker/integration_spec.ts

@@ -2016,7 +2016,7 @@ class DirectiveEmitingEvent {
     this.event = new EventEmitter();
   }
 
-  fireEvent(msg: string) { ObservableWrapper.callNext(this.event, msg); }
+  fireEvent(msg: string) { ObservableWrapper.callEmit(this.event, msg); }
 }
 
 @Directive({selector: '[update-host-attributes]', host: {'role': 'button'}})
@@ -2039,7 +2039,7 @@ class DirectiveUpdatingHostActions {
 
   constructor() { this.setAttr = new EventEmitter(); }
 
-  triggerSetAttr(attrValue) { ObservableWrapper.callNext(this.setAttr, ["key", attrValue]); }
+  triggerSetAttr(attrValue) { ObservableWrapper.callEmit(this.setAttr, ["key", attrValue]); }
 }
 
 @Directive({selector: '[listener]', host: {'(event)': 'onEvent($event)'}})
@@ -2174,7 +2174,7 @@ class DirectiveWithTwoWayBinding {
   controlChange = new EventEmitter();
   control = null;
 
-  triggerChange(value) { ObservableWrapper.callNext(this.controlChange, value); }
+  triggerChange(value) { ObservableWrapper.callEmit(this.controlChange, value); }
 }
 
 @Injectable()
@@ -2382,5 +2382,5 @@ class DirectiveWithPropDecorators {
     this.target = target;
   }
 
-  fireEvent(msg) { ObservableWrapper.callNext(this.event, msg); }
+  fireEvent(msg) { ObservableWrapper.callEmit(this.event, msg); }
 }

modules/angular2/test/core/testability/testability_spec.ts

@@ -34,9 +34,9 @@ class MockNgZone extends NgZone {
     this._onEventDoneStream = new EventEmitter(false);
   }
 
-  start(): void { ObservableWrapper.callNext(this._onTurnStartStream, null); }
+  start(): void { ObservableWrapper.callEmit(this._onTurnStartStream, null); }
 
-  finish(): void { ObservableWrapper.callNext(this._onEventDoneStream, null); }
+  finish(): void { ObservableWrapper.callEmit(this._onEventDoneStream, null); }
 }
 
 export function main() {