Fix: FunctionTemplate::SetPrototypeAttributes broke prototype object

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 11d1922bbccb58b7bd69fccf09e743569ca1663f..fb72fc9196cb363910656a895a37f41a9be07fe8 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -877,7 +877,6 @@ 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));
 }
 
 
@@ -1100,14 +1099,13 @@ void FunctionTemplate::SetHiddenPrototype(bool 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);
 }