chore(test.typings): instrument against examples folder

chore(typing_spec): delete unused typing_spec files

Closes #7743

typing_spec/basic_spec.ts

@@ -1,15 +0,0 @@
-import {Component} from 'angular2/core';
-import {bootstrap} from 'angular2/platform/browser';
-
-@Component({
-  selector: 'my-app',
-	template: '<h1>Hello {{ name }}</h1>'
-})
-// Component controller
-class MyAppComponent {
-  name: string;
-
-  constructor() { this.name = 'Alice'; }
-}
-
-bootstrap(MyAppComponent);

typing_spec/router_spec.ts

@@ -1,28 +0,0 @@
-import {Component} from 'angular2/core';
-import {bootstrap} from 'angular2/platform/browser';
-import {RouteConfig, ROUTER_DIRECTIVES, ROUTER_PROVIDERS} from 'angular2/router';
-
-@Component({
-  selector: 'my-app',
-  template: '<h1>Hello</h1>',
-})
-class FooCmp {
-  constructor(a: string, b: number) {}
-}
-
-
-@Component({
-  selector: 'my-app',
-	template: '<h1>Hello {{ name }}</h1><router-outlet></router-outlet>',
-  directives: ROUTER_DIRECTIVES
-})
-@RouteConfig([
-  {path: '/home', component: FooCmp}
-])
-class MyAppComponent {
-  name: string;
-
-  constructor() { this.name = 'Alice'; }
-}
-
-bootstrap(MyAppComponent, ROUTER_PROVIDERS);