The "noexcept" annotation is part of the type since C++17, so we cannot
just change v8.h to add the annotation everywhere. So instead ignore
missing V8_NOEXCEPT annotations in api.cc

R=marja@chromium.org
CC=jdoerrie@chromium.org

No-Try: true
Bug: v8:8616
Change-Id: I8f68a6d20653ee8c0e3d995cf585b36cbc15c5f0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2655446
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72397}