IDL: Add support for [Unscopeable] on attributes and methods

Source/bindings/tests/results/core/V8DataView.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8DataView.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8ArrayBuffer.h"
 #include "bindings/core/v8/V8DOMConfiguration.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/Document.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
 #include "wtf/GetPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
-const WrapperTypeInfo V8DataView::wrapperTypeInfo = { gin::kEmbedderBlink, 0, V8DataView::refObject, V8DataView::derefObject, V8DataView::trace, 0, 0, V8DataView::installConditionallyEnabledMethods, V8DataView::installConditionallyEnabledProperties, "DataView", &V8ArrayBufferView::wrapperTypeInfo, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
+const WrapperTypeInfo V8DataView::wrapperTypeInfo = { gin::kEmbedderBlink, 0, V8DataView::refObject, V8DataView::derefObject, V8DataView::trace, 0, 0, V8DataView::preparePrototypeObject, V8DataView::installConditionallyEnabledProperties, "DataView", &V8ArrayBufferView::wrapperTypeInfo, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
 
 // This static member must be declared by DEFINE_WRAPPERTYPEINFO in TestDataView.h.
 // For details, see the comment of DEFINE_WRAPPERTYPEINFO in
 // bindings/core/v8/ScriptWrappable.h.
 const WrapperTypeInfo& TestDataView::s_wrapperTypeInfo = V8DataView::wrapperTypeInfo;
 
 bool V8DataView::hasInstance(v8::Local<v8::Value> v8Value, v8::Isolate* isolate)
 {
     return v8Value->IsDataView();
 }
@@ skipping 21 matching lines @@
 {
     scriptWrappable->toImpl<TestDataView>()->ref();
 }
 
 void V8DataView::derefObject(ScriptWrappable* scriptWrappable)
 {
     scriptWrappable->toImpl<TestDataView>()->deref();
 }
 
 } // namespace blink