In the previous implementation, functions overwrote any budget
decrements caused by recursive invocations of themselves, which
could cause tier-up decisions for certain unlucky functions to
get delayed unreasonably long.
This patch avoids this by working with the on-instance value
directly instead of caching it in a stack slot. That generates
the same amount of Liftoff code as the status quo, but handles
recursive functions properly.
The "barista3" benchmark's peak performance improves by almost 20%.

Bug: v8:12281
Change-Id: I8b487a88da99c2d22e132f2cc72bdf36aa5f6e63
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693710
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81249}