This is a reland of ade7f55b

Previously landed as: ade7f55b / 1125679
Previously landed as: 3c4d0316 / 1065818
Previously landed as: 8e0f67be / 1088890

Original change's description:
> Reland ^2 "[async] Expose async hooks to d8"
>
> This is a reland of 8e0f67be
>

Bug: chromium:850530
Change-Id: I536cfb9443d80d62937d9c3dc6a53b52b209d5c7
Reviewed-on: https://chromium-review.googlesource.com/1125683
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54218}