anchor.diff:      List<dom.Node> topElt = dom.query('[ng-app]').nodes.toList();
       assert(topElt.length > 0);
   
  -    $rootScope['greeting'] = "Hello world!";
  +    $rootScope['greeting'] = 'Hello world!';
       var lastRandom;
       $rootScope['random'] = () {
  -      if (lastRandom == null) lastRandom = "Random: ${new math.Random().nextInt(100)}";
  +      if (lastRandom == null) lastRandom =
  +          'Random: ${new math.Random().nextInt(100)}';
         return lastRandom;
       };
  -    $rootScope['people'] = ["James", "Misko"];
  +    $rootScope['people'] = ['James', 'Misko'];
       $rootScope['objs'] = [{'v': 'v1'}, {'v': 'v2'}];
   
       var template = $compile.call(topElt);
  
positive.code:   attach(Scope scope) {
      $scope = scope;
  
      $scope.greeting = "TabController";
      chapters = [];
      $scope.chapters = chapters;
  
      $scope.selected = (chapterScope) {
        chapters.forEach((p) {
          p["selected"] = false;
        });
        chapterScope["selected"] = true;
      };
    }
  
  
negative.code:   BookController controller;
    BookComponent(BookController this.controller);
  
    static String $template = '''
      <div>Shadow backed template. Greeting from the controller:
          <span ng-bind='greeting'></span>
      <h2>Table of Contents</h2><ul class='nav nav-tabs'>
        <li ng-repeat='chapter in chapters' ng-bind='chapter.title'></li>
      </ul>
      <content></content>
      </div>''';
  
    attach(Scope scope) {
      controller.attach(scope);
  