This is a reland of dec62c2d

Revert was not necessary as test was independently flaking.

Original change's description:
> heap: Factor out raw allocation functions into HeapAllocator
>
> This CL is mostly mechanic and provides runtime and static
> dispatch for allocation of objects using HeapAllocator.
>
> Future CLs will remove the Heap bottelenecks.
>
> Bug: v8:12615
> Change-Id: Id2becf7da4bd5273f96abc0e1a4ac6c04bddb1cb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3474674
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79229}

Bug: v8:12615
Change-Id: I505ebde7afd2b0d03e11ef4cbcf1d4d09c6826a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3484322
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79236}