[sandbox] Sandboxify Foreign external pointers

Bug: v8:10391
Change-Id: I567f94800119a9afd3f684134a6f4885026f813e
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3859347
Commit-Queue: Samuel Groß <saelo@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82866}

include/v8-internal.h

@@ -380,7 +380,7 @@ constexpr uint64_t kAllExternalPointerTypeTags[] = {
 // External pointers using these tags are kept in a per-Isolate external
 // pointer table and can only be accessed when this Isolate is active.
 #define PER_ISOLATE_EXTERNAL_POINTER_TAGS(V) \
-  V(kForeignForeignAddressTag,            unsandboxed, TAG(10)) \
+  V(kForeignForeignAddressTag,              sandboxed, TAG(10)) \
   V(kNativeContextMicrotaskQueueTag,        sandboxed, TAG(11)) \
   V(kEmbedderDataSlotPayloadTag,            sandboxed, TAG(12)) \
   V(kExternalObjectValueTag,                sandboxed, TAG(13)) \