change upgraded providers to use annotation injection

Author: filipesilva

public/docs/_examples/upgrade-module/ts/app/1-to-2-providers/app.module.ts

@@ -14,7 +14,7 @@ import { HeroesService } from './heroes.service';
     UpgradeModule
   ],
   providers: [{
-    provide: 'heroes',
+    provide: HeroesService,
     useFactory: (i: any) => i.get('heroes'),
     deps: ['$injector']
   }],

public/docs/_examples/upgrade-module/ts/app/1-to-2-providers/hero-detail.component.ts

@@ -1,5 +1,5 @@
 // #docregion
-import { Component, Inject } from '@angular/core';
+import { Component } from '@angular/core';
 import { HeroesService } from './heroes.service';
 import { Hero } from '../hero';
 
@@ -11,7 +11,7 @@ import { Hero } from '../hero';
 })
 export class HeroDetailComponent {
   hero: Hero;
-  constructor(@Inject('heroes') heroes: HeroesService) {
+  constructor(heroes: HeroesService) {
     this.hero = heroes.get()[0];
   }
 }

public/docs/ts/latest/guide/upgrade.jade

@@ -269,8 +269,7 @@ table
   * We can make Angular 1 services available for injection to Angular 2 code
     by *upgrading* them. The same singleton instance of each service is shared
     between the frameworks. In Angular 2 these services will always be in the
-    *root injector* and available to all components. They will always have
-    *string tokens* - the same tokens that they have in Angular 1.
+    *root injector* and available to all components.
   * We can also make Angular 2 services available for injection to Angular 1 code
     by *downgrading* them. Only services from the Angular 2 root injector can
     be downgraded. Again, the same singleton instances are shared between the frameworks.
@@ -731,12 +730,12 @@ figure
 
 :marked
   We can upgrade the service using a Angular 2 [Factory provider](./dependency-injection.html#factory-providers)
-  that requests the service from the Angular 1 `$injector`. The name of the Angular 2 dependency is up to you:
+  that requests the service from the Angular 1 `$injector`:
 
 +makeExample('upgrade-module/ts/app/1-to-2-providers/app.module.ts', 'register', 'app.module.ts')
 
 :marked
-  We can then inject it in Angular 2 using a string token:
+  We can then inject it in Angular 2 using it's class as a type annotation:
 
 +makeExample('upgrade-module/ts/app/1-to-2-providers/hero-detail.component.ts', null, 'hero-detail.component.ts')