- num_pushed_registers was never set
- parameters_limit need to be update before visiting parameters
- pushed_register_base was off by 1
- added an ASCII diagram

Bug: v8:7700
Change-Id: Ibf02a3007e730ea9de3a86f11e10722a4a1cacaa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3789380
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81996}