refactor: change provide(...) for {provide: ...}

- provide() is deprecated,
- {} syntax is required by the offline compiler

modules/@angular/router/src/router.ts

@@ -259,7 +259,7 @@ class _ActivateSegments {
   private activateNewSegments(outletMap: RouterOutletMap, curr: RouteSegment, prev: RouteSegment,
                               outlet: RouterOutlet): Object {
     let resolved = ReflectiveInjector.resolve(
-        [provide(RouterOutletMap, {useValue: outletMap}), provide(RouteSegment, {useValue: curr})]);
+        [{provide: RouterOutletMap, useValue: outletMap}, {provide: RouteSegment, useValue: curr}]);
     let ref = outlet.activate(routeSegmentComponentFactory(curr), resolved, outletMap);
     if (hasLifecycleHook("routerOnActivate", ref.instance)) {
       ref.instance.routerOnActivate(curr, prev, this.currTree, this.prevTree);

modules/@angular/router/src/router_providers.ts

@@ -1,7 +1,7 @@
 import {ROUTER_PROVIDERS_COMMON} from './router_providers_common';
 
 /**
- * A list of {@link Provider}s. To use the router, you must add this to your application.
+ * A list of providers. To use the router, you must add this to your application.
  *
  * ```
  * import {Component} from '@angular/core';

modules/@angular/router/src/router_providers_common.ts

@@ -17,7 +17,7 @@ export const ROUTER_PROVIDERS_COMMON: any[] = /*@ts2dart_const*/[
     deps: /*@ts2dart_const*/
         [ApplicationRef, ComponentResolver, RouterUrlSerializer, RouterOutletMap, Location],
   },
-  /*@ts2dart_Provider*/ {provide: RouteSegment, useFactory: (r) => r.routeTree.root, deps: [Router]}
+  /*@ts2dart_Provider*/ {provide: RouteSegment, useFactory: routeSegmentFactory, deps: [Router]}
 ];
 
 function routerFactory(app: ApplicationRef, componentResolver: ComponentResolver,
@@ -32,3 +32,7 @@ function routerFactory(app: ApplicationRef, componentResolver: ComponentResolver
   app.registerDisposeListener(() => router.dispose());
   return router;
 }
+
+function routeSegmentFactory(router: Router): RouteSegment {
+  return router.routeTree.root;
+}