anchor.diff:          '<div class="left">A</div><div>B</div><div>C</div>'
           '</conditional-content>',
       directives: const [ConditionalContentComponent])
  -class ContainerABCWithConditionalComponent {}
  +class ContainerABCWithConditionalComponent {
  +  @ViewChild(ConditionalContentComponent)
  +  ConditionalContentComponent child;
  +}
   
   @Component(
       selector: "conditional-content",
  
positive.code:         '<div>(<div *manual><ng-content select=".left"></ng-content></div>'
          ', <ng-content></ng-content>)</div>',
      directives: const [ManualViewportDirective])
  class ConditionalContentComponent {}
  
  @Directive(selector: "[manual]")
  class ManualViewportDirective {
  
negative.code: import 'package:angular_test/angular_test.dart';
  import 'package:test/test.dart';
  import 'package:angular/angular.dart';
  import 'package:_tests/matchers.dart';
  
  import 'projection_test.template.dart' as ng_generated;
  