[Binding] Support primitive type for union member

Source/bindings/tests/results/V8TestInterface.cpp

Index: Source/bindings/tests/results/V8TestInterface.cpp
diff --git a/Source/bindings/tests/results/V8TestInterface.cpp b/Source/bindings/tests/results/V8TestInterface.cpp
index de3de4005e08d523cf4b871ca3b6383d02bc7dc4..33ffe66524778d7b5f4a19118a1131cb042d54aa 100644
--- a/Source/bindings/tests/results/V8TestInterface.cpp
+++ b/Source/bindings/tests/results/V8TestInterface.cpp
@@ -532,12 +532,14 @@ v8::Handle<v8::Value> V8TestInterface::namedPropertyGetter(v8::Local<v8::String>
     ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
     TestInterface* collection = toNative(info.Holder());
     AtomicString propertyName = toWebCoreAtomicString(name);
+    bool element0Enabled = false;
     RefPtr<Node> element0;
+    bool element1Enabled = false;
     RefPtr<NodeList> element1;
-    collection->getItem(propertyName, element0, element1);
-    if (!!element0)
+    collection->getItem(propertyName, element0Enabled, element0, element1Enabled, element1);
+    if (element0Enabled && !!element0)

[kojih, 2013/05/23 09:23:09]

(copied from https://codereview.chromium.org/15724005/)
Yes, just in case.
Test passed without '&& !!element0'.

         return toV8Fast(element0.release(), info, collection);
-    if (!!element1)
+    if (element1Enabled && !!element1)
         return toV8Fast(element1.release(), info, collection);
     return v8Undefined();
 }