anchor.diff:      Update <code>web/main.dart</code>, adding the following code
       after the imports:
   
  -  code-example(language="dart" format="linenums:5").
  +  code-example(language="dart" format="linenums:6").
       @Component(
         selector: 'my-app'
       )
  
positive.code:     name: hello_world
      version: 0.0.1
      dependencies:
        angular2: 2.0.0-alpha.25
        browser: ^0.10.0+2
      <span class="pnk">transformers:
      - angular2:
          entry_points: web/main.dart</span>
  
negative.code: 
    code-example(language="basic").
      &gt; <span class="blk">pub build</span>
      Loading source assets... 
      Loading angular2 transformers... 
      INFO: Formatter is being overwritten.
      Building hello_world... (3.8s) 
      [Info from Dart2JS]:
      Compiling hello_world|web/main.dart...
      [Info from Dart2JS]:
      Took 0:00:15.612746 to compile hello_world|web/main.dart.
      Built 63 files to "build".
    //- REGENERATE THIS OUTPUT - or delete it? - when updating from 2.0.0-alpha.26
  
    p.
      The generated JavaScript appears, along with supporting files,
  