This eliminates some "bitwise operation between different enumeration
types" warnings in c++20, where such ops are deprecated.

Bug: chromium:1284275
Change-Id: Ie7f1d5e9430029bc694cef0358d217871670a8d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3791964Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82057}