This is a reland of commit ef1e65d9

Original change's description:
> [maglev] Inline allocation for heap numbers
>
> Bug: v8:7700
> Change-Id: I2ce46fcfaab6716e6a31167ed517d2e8d9e433d8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3788094
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82027}

Bug: v8:7700
Change-Id: I3d86880c20ef4b5765a87d272f18cad9fac210fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3790971Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82041}