Fix for events not firing on sanitized elements

tests/html/element_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 ElementTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_individual_config.dart';
 import 'dart:async';
 import 'dart:html';
 import 'dart:svg' as svg;
@@ skipping 202 matching lines @@
       document.body.append(table);
       var tBody = table.createTBody();
       var tRow = tBody.addRow();
       var node = tRow.createFragment('<th>foobar').nodes.single;
       expect(node, predicate((x) => x is TableCellElement,
           'is a TableCellElement'));
       expect(node.tagName, 'TH');
       expect(node.parent, isNull);
       expect(node.innerHtml, 'foobar');
     });
+
+    test('.html can fire events', () {
+      var e = new Element.html('<button>aha</button>');
+      var gotEvent = false;
+      e.onClick.listen((_) {
+        gotEvent = true;
+      });
+      e.click();
+      expect(gotEvent, isTrue, reason: 'click should have raised click event');
+    });
   });
 
   group('eventListening', () {
     test('streams', () {
       final target = new Element.tag('div');
 
       void testEvent(Stream stream, String type) {
         var firedOnEvent = false;
         stream.listen((e) {
           firedOnEvent = true;
@@ skipping 682 matching lines @@
 
     test('sublist', () {
       var range = makeElementList().sublist(1, 3);
       expect(range.length, 2);
       expect(range[0], isBRElement);
       expect(range[1], isBRElement);
     });
 
   });
 }