aChange all asyncTest/callbackDone style tests to use the new expectAsync/

tests/html/xmlelement_test.dart

 // Copyright (c) 2012, 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('XMLElementTest');
 #import('../../lib/unittest/unittest.dart');
 #import('../../lib/unittest/html_config.dart');
 #import('dart:html');
 
 main() {
@@ skipping 545 matching lines @@
       Expect.equals("foo<b></b><foo></foo><bar></bar>", el.innerHTML);
     });
 
     test('beforeEnd inserts the HTML', () {
       final el = makeElement();
       el.insertAdjacentHTML("beforeEnd", "<b/>foo");
       Expect.equals("<foo></foo><bar></bar><b></b>foo", el.innerHTML);
     });
   });
 
-  asyncTest('default rect values', 1, () {
-    makeElement().rect.then((ElementRect rect) {
-      expectEmptyRect(rect.client);
-      expectEmptyRect(rect.offset);
-      expectEmptyRect(rect.scroll);
-      expectEmptyRect(rect.bounding);
-      Expect.isTrue(rect.clientRects.isEmpty());
-      callbackDone();
-    });
+  test('default rect values', () {
+    makeElement().rect.then(
+      expectAsync1(ElementRect rect) {
+        expectEmptyRect(rect.client);
+        expectEmptyRect(rect.offset);
+        expectEmptyRect(rect.scroll);
+        expectEmptyRect(rect.bounding);
+        Expect.isTrue(rect.clientRects.isEmpty());
+      }));
   });
 }