anchor.diff:      initializeBracketClosing();
   
       List futures = [];
  -    html.Element head = html.querySelector('html head');
  +//    html.Element head = html.querySelector('html head');
   
   //    // <link href="packages/dart_pad/editing/editor_codemirror.css"
   //    //   rel="stylesheet">
  
positive.code: // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
  // for details. All rights reserved. Use of this source code is governed by a
  // BSD-style license that can be found in the LICENSE file.
  
  library editor.codemirror;
  
  import 'dart:async';
  import 'dart:html' as html;
  
negative.code:   }
  }
  
  //Future _appendNode(html.Element parent, html.Element child) {
  //  Completer completer = new Completer();
  //  child.onLoad.listen((e) {
  //    completer.complete();
  //  });
  //  parent.nodes.add(child);
  //  return completer.future;
  //}
  