Add support for Element#getAttributes

sky/engine/core/dom/Element.idl

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 14 matching lines @@
 
     DOMString? getAttribute(DOMString name);
     [RaisesException, CustomElementCallbacks] void setAttribute(DOMString name, DOMString value);
     [CustomElementCallbacks] void removeAttribute(DOMString name);
 
     [PerWorldBindings, ImplementedAs=attributesForBindings] readonly attribute NamedNodeMap     attributes;
     [MeasureAs=HasAttributes] boolean hasAttributes();
 
     boolean hasAttribute(DOMString name);
 
+    sequence<Attr> getAttributes();
+
     [PerWorldBindings] readonly attribute CSSStyleDeclaration style;
 
     [Reflect] attribute DOMString id;
     readonly attribute DOMString? localName;
 
     [RaisesException] boolean matches(DOMString selectors);
 
     readonly attribute long offsetLeft;
     readonly attribute long offsetTop;
     readonly attribute long offsetWidth;
@@ skipping 25 matching lines @@
     [PerWorldBindings] readonly attribute ShadowRoot shadowRoot;
     NodeList getDestinationInsertionPoints();
 
     // CSSOM View Module API
     ClientRectList getClientRects();
     ClientRect getBoundingClientRect();
 };
 
 Element implements ParentNode;
 Element implements ChildNode;