[Binding] Support primitive type for union member

Source/core/html/HTMLOptionsCollection.cpp

 /*
  * Copyright (C) 2006, 2011, 2012 Apple Computer, Inc.
  *
  * 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 72 matching lines @@
 void HTMLOptionsCollection::setSelectedIndex(int index)
 {
     toHTMLSelectElement(ownerNode())->setSelectedIndex(index);
 }
 
 void HTMLOptionsCollection::setLength(unsigned length, ExceptionCode& ec)
 {
     toHTMLSelectElement(ownerNode())->setLength(length, ec);
 }
 
-void HTMLOptionsCollection::anonymousNamedGetter(const AtomicString& name, RefPtr<NodeList>& returnValue1, RefPtr<Node>& returnValue2)
+void HTMLOptionsCollection::anonymousNamedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtr<NodeList>& returnValue0, bool& returnValue1Enabled, RefPtr<Node>& returnValue1)
 {
     Vector<RefPtr<Node> > namedItems;
     this->namedItems(name, namedItems);
 
     if (!namedItems.size())
         return;
 
     if (namedItems.size() == 1) {
-        returnValue2 = namedItems.at(0);
+        returnValue1Enabled = true;
+        returnValue1 = namedItems.at(0);
         return;
     }
 
-    returnValue1 = NamedNodesCollection::create(namedItems);
+    returnValue0Enabled = true;
+    returnValue0 = NamedNodesCollection::create(namedItems);
 }
 
 } //namespace