And use it in several places in wasm.

R=tebbi@chromium.org

Bug: v8:8562
Change-Id: I1e857baf33e99849eb32ac2c94e39d7f27b180c8
Reviewed-on: https://chromium-review.googlesource.com/c/1391757
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58495}