When call_ref has seen more than one call target, we now support
inlining all of them (constrained by budget/heuristics).

Bug: v8:7748,v8:12166
Change-Id: Iae16e74da1bad5e7a117f70efb6c61b3f39f832c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3650607Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80602}