fix: Fix issues found by Dart analyzer

modules/angular2/test/core/compiler/view_factory_spec.js

@@ -17,7 +17,6 @@ import {
 import {IMPLEMENTS, isBlank} from 'angular2/src/facade/lang';
 import {ViewFactory} from 'angular2/src/core/compiler/view_factory';
 import {AppProtoView, AppView} from 'angular2/src/core/compiler/view';
-import {dynamicChangeDetection} from 'angular2/change_detection';
 import {DirectiveBinding, ElementInjector} from 'angular2/src/core/compiler/element_injector';
 import {DirectiveMetadataReader} from 'angular2/src/core/compiler/directive_metadata_reader';
 import {Component} from 'angular2/src/core/annotations/annotations';

modules/angular2/test/di/binding_dart_spec.dart

@@ -1,5 +1,6 @@
 /// This file contains tests that make sense only in Dart world, such as
 /// verifying that things are valid constants.
+library angular2.test.di.binding_dart_spec;
 
 import 'dart:mirrors';
 import 'package:angular2/test_lib.dart';