Revert reason should be fixed with this CL:
https://chromium-review.googlesource.com/c/v8/v8/+/1722554

The underlying problem was the isolate being accessed from the
background compilation thread. Other known places where the isolate was
used have also been fixed in these CLs:
https://chromium-review.googlesource.com/c/v8/v8/+/1722555
https://chromium-review.googlesource.com/c/v8/v8/+/1722559
https://chromium-review.googlesource.com/c/v8/v8/+/1722556

Original CL:
> Reland "[wasm] Compile JS to WASM wrappers asynchronously"
>
> Original CL had an issue with builtins being accessed through the
> isolate after the isolate died. See:
> https://ci.chromium.org/p/v8/builders/try.triggered/v8_win64_rel_ng_triggered/b8907837534672203296
>
> Initial upload is the original CL and the following patch sets will
> attempt to fix it.
>
> Original CL:
>
> > [wasm] Compile JS to WASM wrappers asynchronously
> >
> > R=mstarzinger@chromium.org, ahaas@chromium.org
> >
> > Bug: v8:9231
> > Change-Id: I9e18073bbe25bf8c9c5f9ace102316e6209d0459
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1669699
> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#62672}
>
> R=​mstarzinger@chromium.org, ahaas@chromium.org
>
> Bug: v8:9231
> Change-Id: I1b01d5d2b9f728d6f6a90fe9b642f5ba3bf686eb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1708485
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62918}

R=mstarzinger@chromium.org

Bug: v8:9231, v8:9554
Change-Id: I40443e7228eb26d6669e826e96073b20fa038c15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1725619Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62985}