feat(testability): add an initial scaffold for the testability api

Make each application component register itself onto the testability
API and exports the API onto the window object.

modules/benchmarks/src/naive_infinite_scroll/index.js

@@ -25,6 +25,7 @@ import {ComponentUrlMapper} from 'angular2/src/core/compiler/component_url_mappe
 import {StyleInliner} from 'angular2/src/core/compiler/style_inliner';
 import {CssProcessor} from 'angular2/src/core/compiler/css_processor';
 import {PrivateComponentLoader} from 'angular2/src/core/compiler/private_component_loader';
+import {TestabilityRegistry, Testability} from 'angular2/src/core/testability/testability';
 
 import {If, For} from 'angular2/directives';
 import {App, setupReflectorForApp} from './app';
@@ -294,6 +295,18 @@ export function setupReflectorForAngular() {
     "annotations" : [new Decorator({selector: '[content]'})]
   });
 
+  reflector.registerType(TestabilityRegistry, {
+    "factory": () => new TestabilityRegistry(),
+    "parameters": [],
+    "annotations": []
+  });
+
+  reflector.registerType(Testability, {
+    "factory": () => new Testability(),
+    "parameters": [],
+    "annotations": []
+  });
+
   reflector.registerType(StyleInliner, {
     "factory": (xhr, styleUrlResolver, urlResolver) =>
       new StyleInliner(xhr, styleUrlResolver, urlResolver),