feat(compiler): add change detector generation

Runtime and Codegen.

Part of #3605
Closes #4057

modules/angular2/test/compiler/change_detector_mocks.ts

@@ -0,0 +1,52 @@
+import {isBlank} from 'angular2/src/core/facade/lang';
+import {Pipes} from 'angular2/src/core/change_detection/pipes';
+import {
+  ProtoChangeDetector,
+  ChangeDispatcher,
+  DirectiveIndex,
+  BindingTarget
+} from 'angular2/src/core/change_detection/change_detection';
+
+export class TestContext {
+  eventLog: string[] = [];
+  someProp: string;
+  someProp2: string;
+
+  onEvent(value: string) { this.eventLog.push(value); }
+}
+
+export class TestDirective {
+  eventLog: string[] = [];
+  dirProp: string;
+
+  onEvent(value: string) { this.eventLog.push(value); }
+}
+
+export class TestDispatcher implements ChangeDispatcher {
+  log: string[];
+
+  constructor(public directives: any[], public detectors: ProtoChangeDetector[]) { this.clear(); }
+
+  getDirectiveFor(di: DirectiveIndex) { return this.directives[di.directiveIndex]; }
+
+  getDetectorFor(di: DirectiveIndex) { return this.detectors[di.directiveIndex]; }
+
+  clear() { this.log = []; }
+
+  notifyOnBinding(target: BindingTarget, value) {
+    this.log.push(`${target.mode}(${target.name})=${this._asString(value)}`);
+  }
+
+  logBindingUpdate(target, value) {}
+
+  notifyAfterContentChecked() {}
+  notifyAfterViewChecked() {}
+
+  getDebugContext(a, b) { return null; }
+
+  _asString(value) { return (isBlank(value) ? 'null' : value.toString()); }
+}
+
+export class TestPipes implements Pipes {
+  get(type: string) { return null; }
+}