Avoid crash when id isn't a valid Smi value anymore.

Bug: v8:10543
Change-Id: Id1be497cf5b8e8c01b97cc5d76f38f73927c6cea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2214831Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68066}