Extract code sequence into macro-assembler for reuse between Liftoff and
TurboFan.

There is a bit of register-aliasing checking due to the rather strict
requirements for the code sequence depending on the CpuFetures that are
supported.

Bug: v8:11415
Change-Id: Idbc0ca43475db5650d1747c8a741e9f11b80d8e3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698063Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72875}