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}