anchor.diff:    }
   }
   
  +/// Tests that `@Component(host: ...)` works.
   @Component(
  -    selector: 'component-with-hostevent',
  -    host: const {
  -      '(focus)': 'onFocus()',
  -      '(blur)': 'onBlur()',
  -      '(click)': 'toggled = !toggled'
  -    },
  -    template: '<div [attr.has-focus]="hasFocus"></div>')
  +  selector: 'component-with-hostevent',
  +  host: const {
  +    '(focus)': 'onFocus()',
  +    '(blur)': 'onBlur()',
  +  },
  +  template: '<div [attr.has-focus]="hasFocus"></div>',
  +)
   class ComponentWithHostEvent {
     bool hasFocus = false;
  -  bool toggled = false;
   
     void onFocus() {
       hasFocus = true;
  
positive.code:     hasFocus = false;
    }
  }
  
negative.code: @Tags(const ['codegen'])
  @TestOn('browser && !js')
  import 'dart:async';
  import 'dart:html';
  
  import 'package:angular2/angular2.dart';
  