gh-131798: JIT inline function addresses of builtin methods

[kumaraditya303]

• Issue: Better uop coverage in the JIT optimizer #131798

[Fidget-Spinner]

Edit: I might be wrong on the following, so please ignore the rest.

Really sorry I just realised this optimization may not be sound:

The builtin call specializations only check for that the builtin tp flags match, I don't think they check for tp_version_tag and such. So we can have a method that changes its tp_slots under our feet.

Sorry for taking up your time!

[Fidget-Spinner]

The rewriting that we discussed might still pay off though (rewriting {}.get() to a custom uop for example).

That should also be sound, provided we have the correct guards.