This avoids unnecessary spill moves and reduces register pressure.

Bug: v8:7700
Change-Id: I3f2c35f2b6c0a3e64408b40d59696d924af8a9b4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3647365Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80527}