RFC: 8023657: Extra type profiling points could help C2 code generation

[Roland Westrelin]

Hi Vladimir,

Thanks for your feedback on this.

> It depends how much time/work you need to implement it in C1. May be push Interpreter first (32- and 64-bits), then push speculative types which will use this info and let it be tested (we have Nightly without TieredComp) while you work on C1. Because you may need to adjust something based on testing.

I've started working on the c1 profiling. I'll see if I can it working quickly otherwise I'll follow your suggestion and do the interpreter only push first.

Roland.