feat(dart/transform): Use the best available Change Detectors

Enable pregenerated (for Dart) and JIT (for Js) change detectors when
possible. Previously we would always use `DynamicChangeDetector`s, but
these cause megamorphic calls and are therefore much slower.

Closes #502

modules/angular2/test/change_detection/change_detection_spec.ts

@@ -20,7 +20,7 @@ export function main() {
     });
 
     it("should return a proto change detector when one is available", () => {
-      var map = {'id': (registry) => proto};
+      var map = {'id': (registry, def) => proto};
       var cd = new PreGeneratedChangeDetection(null, map);
 
       expect(cd.createProtoChangeDetector(def)).toBe(proto)

modules/angular2/test/change_detection/change_detector_spec.ts

@@ -37,7 +37,6 @@ import {
   ON_PUSH,
   DEFAULT,
   WrappedValue,
-  JitProtoChangeDetector,
   DynamicProtoChangeDetector,
   ChangeDetectorDefinition,
   Lexer,
@@ -45,6 +44,7 @@ import {
   Locals,
   ProtoChangeDetector
 } from 'angular2/change_detection';
+import {JitProtoChangeDetector} from 'angular2/src/change_detection/jit_proto_change_detector';
 
 import {getDefinition} from './change_detector_config';
 import {getFactoryById} from './generated/change_detector_classes';

modules/angular2/test/transform/directive_metadata_extractor/directive_metadata_files/changeDetection.ng_deps.dart

@@ -22,8 +22,6 @@ void initReflector(reflector) {
     ..registerType(HelloCmp, {
       'factory': () => new HelloCmp(),
       'parameters': const [const []],
-      'annotations': const [
-        const Component(changeDetection: 'CHECK_ONCE')
-      ]
+      'annotations': const [const Component(changeDetection: 'CHECK_ONCE')]
     });
 }

modules/angular2/test/transform/directive_metadata_extractor/directive_metadata_files/events.ng_deps.dart

@@ -22,8 +22,6 @@ void initReflector(reflector) {
     ..registerType(HelloCmp, {
       'factory': () => new HelloCmp(),
       'parameters': const [const []],
-      'annotations': const [
-        const Component(events: ['onFoo', 'onBar'])
-      ]
+      'annotations': const [const Component(events: ['onFoo', 'onBar'])]
     });
 }

modules/angular2/test/transform/integration/two_annotations_files/expected/bar.ng_deps.dart

@@ -20,6 +20,8 @@ void initReflector(reflector) {
         const View(template: 'Salad')
       ]
     });
+  _gen.preGeneratedProtoDetectors['MyComponent_comp_0'] =
+      _MyComponent_ChangeDetector0.newProtoChangeDetector;
 }
 class _MyComponent_ChangeDetector0 extends _gen.AbstractChangeDetector {
   final dynamic _dispatcher;