- Create a PushArray to simplify code.
 - Adapt all the sites in builtins-x64.

Bug: v8:10201
Change-Id: I828f4d2e43373a4fe6380346c5628a345720fe38
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2083028Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66595}