Apply html renames to native wrappers.

tests/html/htmlelement_test.dart

 #library('ElementTest');
 #import('../../lib/unittest/unittest.dart');
 #import('../../lib/unittest/html_config.dart');
 #import('dart:html');
 
 main() {
   useHtmlConfiguration();
   test('InnerHTML', () {
     Element element = new Element.tag('div');
     element.id = 'test';
     element.innerHTML = 'Hello World';
     document.body.nodes.add(element);
 
     element = document.query('#test');
     Expect.stringEquals('Hello World', element.innerHTML);
     element.remove();
   });
   test('HTMLTable', () {
     Element table = new Element.tag('table');
 
     TableRowElement row = new Element.tag('tr');
     table.nodes.add(row);
 
     row.nodes.add(new Element.tag('td'));
     row.nodes.add(new Element.tag('td'));
 
     Expect.equals(2, row.cells.length);
 
-    TableRowElement headerRow = table.rows.item(0);
+    TableRowElement headerRow = table.rows[0];
     Expect.equals(2, headerRow.cells.length);
   });
   test('dataAttributes', () {
     Element div = new Element.tag('div');
 
     Expect.isTrue(div.dataAttributes.isEmpty());
     Expect.equals(null, div.dataAttributes['foo']);
     Expect.isTrue(div.dataAttributes.isEmpty());
 
     div.dataAttributes['foo'] = 'foo-value';
@@ skipping 42 matching lines @@
 
     Expect.equals('foo-value', div.dataAttributes.remove('foo'));
     Expect.equals(1, div.dataAttributes.length);
     Expect.isFalse(div.dataAttributes.isEmpty());
 
     div.dataAttributes.clear();
     Expect.equals(0, div.dataAttributes.length);
     Expect.isTrue(div.dataAttributes.isEmpty());
   });
 }