Drive-by: Fix incorrect typing of Phi node in
JSTypedLowering::ReduceJSHasInProtoypeChain

Bug: v8:12619
Change-Id: Iac6e04e7de7596caa11d021f2cb0759b50aa9bc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3755113Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81785}