Handlify Object::ToObject.

src/json-stringifier.h

 // Copyright 2012 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 246 matching lines @@
     "\374\0      \375\0      \376\0      \377\0      ";
 
 
 BasicJsonStringifier::BasicJsonStringifier(Isolate* isolate)
     : isolate_(isolate),
       current_index_(0),
       is_ascii_(true),
       overflowed_(false) {
   factory_ = isolate_->factory();
   accumulator_store_ = Handle<JSValue>::cast(
-                           factory_->ToObject(factory_->empty_string()));
+      Object::ToObject(isolate, factory_->empty_string()).ToHandleChecked());
   part_length_ = kInitialPartLength;
   current_part_ = factory_->NewRawOneByteString(part_length_).ToHandleChecked();
   tojson_string_ = factory_->toJSON_string();
   stack_ = factory_->NewJSArray(8);
 }
 
 
 MaybeObject* BasicJsonStringifier::Stringify(Handle<Object> object) {
   switch (SerializeObject(object)) {
     case UNCHANGED:
@@ skipping 616 matching lines @@
       SerializeString_<false, uint8_t>(object);
     } else {
       SerializeString_<false, uc16>(object);
     }
   }
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSON_STRINGIFIER_H_