* "volatile" on by-value params is deprecated.  Remove.
* ICU has decided not to fix a warning about rewritten comparison
  operators.  Work around.  This is ugly, but the alternative is
  disabling the warning entirely for this file or all of v8, which seem
  worse.

Bug: chromium:1284275
Change-Id: Ia90ae439fc56c3970da539d4ae3a64927ec4357b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3652575
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80631}