anchor.diff:  /// [docs]: docs/guide/lifecycle-hooks.html#afterview
   /// [ex]: examples/lifecycle-hooks#after-view
   abstract class AfterViewChecked {
  -  ngAfterViewChecked();
  +  void ngAfterViewChecked();
   }
  
positive.code: /// [docs]: docs/guide/lifecycle-hooks.html#aftercontent
  /// [ex]: examples/lifecycle-hooks#after-content
  abstract class AfterContentChecked {
    ngAfterContentChecked();
  }
  
  /// Implement this interface to get notified when your component's view has been
  
negative.code: /// [docs]: docs/guide/lifecycle-hooks.html#docheck
  /// [ex]: examples/lifecycle-hooks#docheck
  abstract class DoCheck {
    void ngDoCheck();
  }
  
  /// Implement this interface to get notified when your directive is destroyed.
  