Support union return type for anonymous named/indexed getter

Source/bindings/tests/results/V8TestEventTarget.cpp

Index: Source/bindings/tests/results/V8TestEventTarget.cpp
diff --git a/Source/bindings/tests/results/V8TestEventTarget.cpp b/Source/bindings/tests/results/V8TestEventTarget.cpp
index cbb734e1d6cd0a51ce87cd7630fcc3a05d6b43a1..eed95dad92b78a10fbaae1e8e0167d3a47089897 100644
--- a/Source/bindings/tests/results/V8TestEventTarget.cpp
+++ b/Source/bindings/tests/results/V8TestEventTarget.cpp
@@ -199,7 +199,10 @@ v8::Handle<v8::Value> V8TestEventTarget::indexedPropertyGetter(uint32_t index, c
     RefPtr<Node> element = collection->item(index);
     if (!element)
         return v8Undefined();
-    return toV8Fast(element.release(), info, collection);
+
+    v8::Handle<v8::Value> jsValue;
+    jsValue = toV8Fast(element.release(), info, collection);
+    return jsValue;
 }
 
 v8::Handle<v8::Value> V8TestEventTarget::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
@@ -215,7 +218,10 @@ v8::Handle<v8::Value> V8TestEventTarget::namedPropertyGetter(v8::Local<v8::Strin
     RefPtr<Node> element = collection->namedItem(propertyName);
     if (!element)
         return v8Undefined();
-    return toV8Fast(element.release(), info, collection);
+
+    v8::Handle<v8::Value> jsValue;
+    jsValue = toV8Fast(element.release(), info, collection);
+    return jsValue;
 }
 
 static v8::Persistent<v8::FunctionTemplate> ConfigureV8TestEventTargetTemplate(v8::Persistent<v8::FunctionTemplate> desc, v8::Isolate* isolate, WrapperWorldType currentWorldType)