feat(tests): add ROUTER_FAKE_PROVIDERS to angular2/alt_router/router_testing_providers

This change adds providers for fake router dependecies.
This allows TestComponentBuilder to create components with RouterLink and RouterOutlet directives
without the test writer needing to override them.

modules/angular2/src/alt_router/router_testing_providers.ts

@@ -0,0 +1,27 @@
+import {SpyLocation} from 'angular2/src/mock/location_mock';
+import {Location} from 'angular2/platform/common';
+import {Router, RouterOutletMap} from './router';
+import {RouterUrlSerializer, DefaultRouterUrlSerializer} from './router_url_serializer';
+import {Component, ComponentResolver} from 'angular2/core';
+
+@Component({selector: 'fake-app-root-comp', template: `<span></span>`})
+class FakeAppRootCmp {
+}
+
+function routerFactory(componentResolver: ComponentResolver, urlSerializer: RouterUrlSerializer,
+                       routerOutletMap: RouterOutletMap, location: Location): Router {
+  return new Router(null, FakeAppRootCmp, componentResolver, urlSerializer, routerOutletMap,
+                    location);
+}
+
+export const ROUTER_FAKE_PROVIDERS: any[] = /*@ts2dart_const*/ [
+  RouterOutletMap,
+  /* @ts2dart_Provider */ {provide: Location, useClass: SpyLocation},
+  /* @ts2dart_Provider */ {provide: RouterUrlSerializer, useClass: DefaultRouterUrlSerializer},
+  /* @ts2dart_Provider */ {
+    provide: Router,
+    useFactory: routerFactory,
+    deps: /*@ts2dart_const*/
+        [ComponentResolver, RouterUrlSerializer, RouterOutletMap, Location]
+  },
+];