.. Throw|LazyDeopt. Whether a builtin can Throw|LazyDeopt depends
on the implementation, so to be safe all builtin calls should be
marked as such - UNLESS we know for certain that one or the other
doesn't happen.

Drive-by: For calls with two result registers, properly consider
the second register in a few spots.

Bug: v8:7700
Change-Id: Icbcffb51e9760761a2f4e32d79af33abccb8f1cb
Fixed: chromium:1361245
Fixed: chromium:1360800
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3879617Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83152}