Only apply this optimization to the conditions that have multiple
branch uses.

Bug: v8:12484
Change-Id: Ieb74b8e879e62aa96344f2903f1fea6a1b769549
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3902559Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Cr-Commit-Position: refs/heads/main@{#83347}