refactor(core): type ComponentRef, ComponentFactory and ComponentFixture by the component type

BREAKING CHANGE:
- `ComponetRef`, `ComponentFactory`, `ComponentFixture` now all require a type
  parameter with the component type.
Closes #8361

modules/angular2/test/web_workers/worker/renderer_integration_spec.ts

@@ -120,7 +120,7 @@ export function main() {
       return uiRenderStore.deserialize(id);
     }
 
-    function getRenderer(componentRef: ComponentRef) {
+    function getRenderer(componentRef: ComponentRef<any>) {
       return (<any>componentRef.hostView).internalView.renderer;
     }