Fix: FunctionTemplate::SetPrototypeAttributes broke prototype object

src/api.cc

 // Copyright 2011 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 859 matching lines @@
   array.add(Utils::OpenHandle(*value));
   array.add(Utils::OpenHandle(*v8::Integer::New(attribute)));
 }
 
 
 // --- F u n c t i o n   T e m p l a t e ---
 static void InitializeFunctionTemplate(
       i::Handle<i::FunctionTemplateInfo> info) {
   info->set_tag(i::Smi::FromInt(Consts::FUNCTION_TEMPLATE));
   info->set_flag(0);
-  info->set_prototype_attributes(i::Smi::FromInt(v8::None));
 }
 
 
 Local<ObjectTemplate> FunctionTemplate::PrototypeTemplate() {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::FunctionTemplate::PrototypeTemplate()")) {
     return Local<ObjectTemplate>();
   }
   ENTER_V8(isolate);
   i::Handle<i::Object> result(Utils::OpenHandle(this)->prototype_template());
@@ skipping 202 matching lines @@
 void FunctionTemplate::SetHiddenPrototype(bool value) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::FunctionTemplate::SetHiddenPrototype()")) {
     return;
   }
   ENTER_V8(isolate);
   Utils::OpenHandle(this)->set_hidden_prototype(value);
 }
 
 
-void FunctionTemplate::SetPrototypeAttributes(int attributes) {
+void FunctionTemplate::ReadOnlyPrototype() {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::FunctionTemplate::SetPrototypeAttributes()")) {
     return;
   }
   ENTER_V8(isolate);
-  Utils::OpenHandle(this)->set_prototype_attributes(
-      i::Smi::FromInt(attributes));
+  Utils::OpenHandle(this)->set_read_only_prototype(true);
 }
 
 
 void FunctionTemplate::SetNamedInstancePropertyHandler(
       NamedPropertyGetter getter,
       NamedPropertySetter setter,
       NamedPropertyQuery query,
       NamedPropertyDeleter remover,
       NamedPropertyEnumerator enumerator,
       Handle<Value> data) {
@@ skipping 4919 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* scope_implementer =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   scope_implementer->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal