See https://github.com/WebAssembly/stringref/issues/1.

Bug: v8:12868
Change-Id: Iea3940c48d5f47609ff7d32e366d2f41d2161372
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3734808Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andy Wingo <wingo@igalia.com>
Cr-Commit-Position: refs/heads/main@{#81448}