.. caused by accidentally removing the continuation case of a
V8_FALLTHROUGH.

Fixed: v8:12561
Bug: v8:12552
Change-Id: I720a531155751b5409339344e96957a2e325a82f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3406538
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78735}