This is a reland of a3218aa7.
Unmodified reland, thus TBR.

Original change's description:
> [wasm] Add support to allocate in a specific code region
>
> For multiple code spaces with multiple jump tables, we need to allocate
> the space for the jump tables within specific regions (the new code
> spaces) so they are within reachable distance.
> This CL adds support for that, and uses it for the first jump table.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:9477
> Change-Id: Ibdf05c9500c2dfdb2c5f5f920b4422339aaab810
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1733069
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63074}

TBR=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: Ic110705fa13edeb103c06ad579a61cba78b6890c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1738848Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63089}