Fixing formatting of dart:html's dart2js annotations.

tools/dom/templates/html/dart2js/impl_Window.darttemplate

 // 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.
 
 part of html;
-$ANNOTATIONS
-class $CLASSNAME$EXTENDS$IMPLEMENTS native "@*DOMWindow" {
+
+$(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS native "@*DOMWindow" {
 
   Document get document => JS('Document', '#.document', this);
 
   WindowBase _open2(url, name) => JS('Window', '#.open(#,#)', this, url, name);
 
   WindowBase _open3(url, name, options) =>
       JS('Window', '#.open(#,#,#)', this, url, name, options);
 
   WindowBase open(String url, String name, [String options]) {
     if (options == null) {
@@ skipping 136 matching lines @@
   void registerPort(String name, var port) {
     var serialized = _serialize(port);
     document.documentElement.attributes['dart-port:$name'] = json.stringify(serialized);
   }
 
   @DomName('Window.console')
   Console get console => Console.safeConsole;
 
 $!MEMBERS
 }