Changed @domName annotation in comment to full fledge @DomName annotation.

tools/dom/templates/html/impl/impl_EventTarget.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;
 
 /**
  * Base class that supports listening for and dispatching browser events.
  *
  * Events can either be accessed by string name (using the indexed getter) or by
@@ skipping 46 matching lines @@
   }
 
   void _add(EventListener listener, bool useCapture) {
     _ptr.$dom_addEventListener(_type, listener, useCapture);
   }
 
   void _remove(EventListener listener, bool useCapture) {
     _ptr.$dom_removeEventListener(_type, listener, useCapture);
   }
 }
-
-/// @domName $DOMNAME
+$ANNOTATIONS
 /**
  * Base class for all browser objects that support events.
  *
  * Use the [on] property to add, remove, and dispatch events (rather than
  * [$dom_addEventListener], [$dom_dispatchEvent], and
  * [$dom_removeEventListener]) for compile-time type checks and a more concise
  * API.
  */ 
 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 
-  /** @domName EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent */
+  @DomName('EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent')
   Events get on => new Events(this);
 $!MEMBERS
 }