Take 2 of splitting html tests into subtests. Had to make two changes to drt to

tests/html/node_test.dart

 // Copyright (c) 2011, 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 NodeTest;
 import '../../pkg/unittest/lib/unittest.dart';
-import '../../pkg/unittest/lib/html_config.dart';
+import '../../pkg/unittest/lib/html_individual_config.dart';
 import 'dart:html';
 
 Node makeNode() => new Element.tag('div');
 Node makeNodeWithChildren() =>
   new Element.html("<div>Foo<br/><!--baz--></div>");
 
 main() {
-  useHtmlConfiguration();
+  useHtmlIndividualConfiguration();
 
   var isText = predicate((x) => x is Text, 'is a Text');
   var isComment = predicate((x) => x is Comment, 'is a Comment');
   var isBRElement = predicate((x) => x is BRElement, 'is a BRElement');
   var isHRElement = predicate((x) => x is HRElement, 'is a HRElement');
   var isNodeList = predicate((x) => x is List<Node>, 'is a List<Node>');
   var isImageElement =
       predicate((x) => x is ImageElement, 'is an ImageElement');
   var isInputElement =
       predicate((x) => x is InputElement, 'is an InputElement');
@@ skipping 171 matching lines @@
     });
 
     test('getRange', () {
       var range = makeNodeList().getRange(1, 2);
       expect(range, isNodeList);
       expect(range[0], isBRElement);
       expect(range[1], isComment);
     });
   });
 }