This is a reland of 1f5ab936

Tests started passing before this was reverted so this isn't
culprit.

Original change's description:
> [Intl] Fix legacy error handling
>
> Bug: v8:5751
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: I382404f4c59c1e997ea0fb58f3a995b653c0d6bc
> Reviewed-on: https://chromium-review.googlesource.com/1148031
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54625}

TBR: jgruber@chromium.org
Bug: v8:5751
Change-Id: I546b10e5cbbbac3aa947ca55cea1f7cc4ae77270
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1148660Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54672}