[protectors] Add missing protector check for keyed store transition case

Bug: v8:9837
Change-Id: Ib31f027f189017eab820b6eec2b7753e0bccdf82
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864008
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64367}

src/ic/keyed-store-generic.cc

@@ -826,6 +826,7 @@ void KeyedStoreGenericAssembler::EmitGenericPropertyStore(
     BIND(&lookup_transition);
     {
       Comment("lookup transition");
+      CheckForAssociatedProtector(name, slow);
       TNode<Map> transition_map =
           FindCandidateStoreICTransitionMapHandler(receiver_map, name, slow);