chore(build): Upgrade to TypeScript@1.5.3

This change also makes us compliant with 1.6.0-dev compiler,
so we can do some experiments with apps that use 1.6 features
and compile against Angular.

We should probably add a travis build for 1.6 so we stay compatible
with both versions.

modules/angular2/src/test_lib/spies.dart

@@ -4,32 +4,32 @@ import 'package:angular2/src/change_detection/change_detection.dart';
 import 'package:angular2/di.dart';
 import './test_lib.dart';
 
-@proxy
+@proxy()
 class SpyChangeDetector extends SpyObject implements ChangeDetector {
   noSuchMethod(m) => super.noSuchMethod(m);
 }
 
-@proxy
+@proxy()
 class SpyProtoChangeDetector extends SpyObject implements ProtoChangeDetector {
   noSuchMethod(m) => super.noSuchMethod(m);
 }
 
-@proxy
+@proxy()
 class SpyPipe extends SpyObject implements Pipe {
   noSuchMethod(m) => super.noSuchMethod(m);
 }
 
-@proxy
+@proxy()
 class SpyPipeFactory extends SpyObject implements PipeFactory {
   noSuchMethod(m) => super.noSuchMethod(m);
 }
 
-@proxy
+@proxy()
 class SpyDependencyProvider extends SpyObject implements DependencyProvider {
   noSuchMethod(m) => super.noSuchMethod(m);
 }
 
-@proxy
+@proxy()
 class SpyChangeDetectorRef extends SpyObject implements ChangeDetectorRef {
   noSuchMethod(m) => super.noSuchMethod(m);
 }

modules/angular2/src/test_lib/test_lib.ts

@@ -12,7 +12,9 @@ import {createTestInjector, FunctionWithParamTokens, inject} from './test_inject
 
 export {inject} from './test_injector';
 
-export function proxy() {}
+export function proxy(): ClassDecorator {
+  return (t) => t;
+}
 
 var _global: jasmine.GlobalPolluter = <any>(typeof window === 'undefined' ? global : window);