They need to agree about when to delegate to CloneFastJSArray, since it
produces arrays which are potentially COW. If they don't agree, TF
generates code which produces a COW array and then expects it to be
non-COW -> immediate deopt.
This CL gets rid of the discrepancy in the case when there's exactly
one argument and it's the number 0.
Some corner cases remain, e.g., 1st argument not a number but ToInteger
returns 0. These should be extremely rare in the real world.
Bug: v8:12194
Change-Id: I10230245c97f8997da4d79702f29ebff11297229
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3147910
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76745}
