StoreICs use slow handler for now.

Bug: v8:11804
Change-Id: I008fc9a3639f649b63881f759078e664b16e25e3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2985403Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75395}