feat(transformers): collect information about di dependencies and providers

modules/angular2/src/core/change_detection/change_detector_ref.ts

@@ -1,6 +1,8 @@
 import {ChangeDetector} from './interfaces';
 import {ChangeDetectionStrategy} from './constants';
+import {Injectable} from 'angular2/src/core/di';
 
+@Injectable()
 export abstract class ChangeDetectorRef {
   /**
    * Marks all {@link ChangeDetectionStrategy#OnPush} ancestors as to be checked.