Suspicious code in GraphKit::record_profiled_receiver_for_speculation

[Roland Westrelin]

> I thought we should fix it like this:
> 
> bool maybe_null = true;
> if (java_bc() == Bytecodes::_checkcast ||
>     java_bc() == Bytecodes::_instanceof ||
>     java_bc() == Bytecodes::_aastore) {
>    ciProfileData* data = method()->method_data()->bci_to_data(bci());
>    maybe_null = data == NULL ? true : data->as_BitData()->null_seen();
> }
> return record_profile_for_speculation(n, exact_kls, maybe_null);
> 
> Because before JDK-8031755 we called record_profile_for_speculation() for all bytecodes not only checkcast, instanceof and aastore.

Right I missed that. Yes, I think you're right.

Roland.