unhide nodeType constants

sdk/lib/html/dart2js/html_dart2js.dart

 /// The Dart HTML library.
 library dart.dom.html;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev';
 import 'dart:html_common';
 import 'dart:indexed_db';
 import 'dart:isolate';
 import 'dart:json' as json;
@@ skipping 16119 matching lines @@
     return controller.stream;
   }
 
   /**
    * Print out a String representation of this Node.
    */
   String toString() => localName == null ?
       (nodeValue == null ? super.toString() : nodeValue) : localName;
 
 
+  static const int ATTRIBUTE_NODE = 2;
+
+  static const int CDATA_SECTION_NODE = 4;
+
+  static const int COMMENT_NODE = 8;
+
+  static const int DOCUMENT_FRAGMENT_NODE = 11;
+
+  static const int DOCUMENT_NODE = 9;
+
+  static const int DOCUMENT_TYPE_NODE = 10;
+
+  static const int ELEMENT_NODE = 1;
+
+  static const int ENTITY_NODE = 6;
+
+  static const int ENTITY_REFERENCE_NODE = 5;
+
+  static const int NOTATION_NODE = 12;
+
+  static const int PROCESSING_INSTRUCTION_NODE = 7;
+
+  static const int TEXT_NODE = 3;
+
   @JSName('childNodes')
   @DomName('Node.childNodes')
   @DocsEditable
   @Returns('NodeList')
   @Creates('NodeList')
   final List<Node> $dom_childNodes;
 
   @JSName('firstChild')
   @DomName('Node.firstChild')
   @DocsEditable
@@ skipping 13735 matching lines @@
       _position = nextPosition;
       return true;
     }
     _current = null;
     _position = _array.length;
     return false;
   }
 
   T get current => _current;
 }