The budget interrupt in maglev can clobber registers. We need to save
the caller-saved registers before making this call.

Additionally, move the interrupt call into deferred code, and only emit
the interrupt check + call for returns and backwards jumps (i.e. things
that reduce the budget).

Bug: v8:7700
Change-Id: I277e9fdf454ff0f22bf20e7cf9538e3020403c1a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3644619Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80510}