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

Source/bindings/core/v8/V8PerContextData.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 96 matching lines @@
         if (prototypeTemplate.IsEmpty())
             return v8::Local<v8::Function>();
         if (!v8CallBoolean(function->SetPrototype(currentContext, prototypeTemplate)))
             return v8::Local<v8::Function>();
     }
 
     v8::Local<v8::Object> prototypeObject = function->Get(currentContext, v8AtomicString(m_isolate, "prototype")).ToLocalChecked().As<v8::Object>();
     if (prototypeObject->InternalFieldCount() == v8PrototypeInternalFieldcount
         && type->wrapperTypePrototype == WrapperTypeInfo::WrapperTypeObjectPrototype)
         prototypeObject->SetAlignedPointerInInternalField(v8PrototypeTypeIndex, const_cast<WrapperTypeInfo*>(type));
-    type->installConditionallyEnabledMethods(prototypeObject, m_isolate);
+    type->preparePrototypeObject(m_isolate, prototypeObject);
     if (type->wrapperTypePrototype == WrapperTypeInfo::WrapperTypeExceptionPrototype) {
         if (!v8CallBoolean(prototypeObject->SetPrototype(currentContext, m_errorPrototype.newLocal(m_isolate))))
             return v8::Local<v8::Function>();
     }
 
     m_constructorMap.Set(type, function);
 
     return function;
 }
 
@@ skipping 17 matching lines @@
 {
     return m_compiledPrivateScript.Get(className);
 }
 
 void V8PerContextData::setCompiledPrivateScript(String className, v8::Handle<v8::Value> compiledObject)
 {
     m_compiledPrivateScript.Set(className, compiledObject);
 }
 
 } // namespace blink