IDL: Conversion to Dictionary is trivial (can't fail)

Source/bindings/templates/interface.cpp

 {% extends 'interface_base.cpp' %}
 
 
 {##############################################################################}
 {% block constructor_getter %}
 {% if has_constructor_attributes %}
 static void {{cpp_class}}ConstructorGetter(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Value> data = info.Data();
     ASSERT(data->IsExternal());
@@ skipping 565 matching lines @@
         exceptionState.throwIfNeeded();
         return;
     }
 
     TOSTRING_VOID(V8StringResource<>, type, info[0]);
     {% for attribute in any_type_attributes %}
     v8::Local<v8::Value> {{attribute.name}};
     {% endfor %}
     {{cpp_class}}Init eventInit;
     if (info.Length() >= 2) {
-        TONATIVE_VOID(Dictionary, options, Dictionary(info[1], info.GetIsolate()));
+        Dictionary options(info[1], info.GetIsolate());
         if (!initialize{{cpp_class}}(eventInit, options, exceptionState, info)) {
             exceptionState.throwIfNeeded();
             return;
         }
         {# Store attributes of type |any| on the wrapper to avoid leaking them
            between isolated worlds. #}
         {% for attribute in any_type_attributes %}
         options.get("{{attribute.name}}", {{attribute.name}});
         if (!{{attribute.name}}.IsEmpty())
             V8HiddenValue::setHiddenValue(info.GetIsolate(), info.Holder(), v8AtomicString(info.GetIsolate(), "{{attribute.name}}"), {{attribute.name}});
@@ skipping 666 matching lines @@
 {% endif %}
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline({{cpp_class}}* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 {% endblock %}