[web snap] Bypass errors when encountering sealed / frozen arrays

Integrity levels are not handled yet (but there's a TODO now).

Bug: v8:11525, v8:12820
Change-Id: Id72e49b363615e51ec89a353101cc4cf76ccbab4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3616515Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80300}

src/web-snapshot/web-snapshot.cc

@@ -866,11 +866,15 @@ void WebSnapshotSerializer::DiscoverArray(Handle<JSArray> array) {
 
   auto elements_kind = array->GetElementsKind();
   if (elements_kind != PACKED_SMI_ELEMENTS &&
-      elements_kind != PACKED_ELEMENTS) {
+      elements_kind != PACKED_ELEMENTS &&
+      elements_kind != PACKED_SEALED_ELEMENTS &&
+      elements_kind != PACKED_FROZEN_ELEMENTS) {
     Throw("Unsupported array");
     return;
   }
   // TODO(v8:11525): Support sparse arrays & arrays with holes.
+  // TODO(v8:11525): Handle sealed & frozen elements correctly. (Also: handle
+  // sealed & frozen objects.)
   DisallowGarbageCollection no_gc;
   FixedArray elements = FixedArray::cast(array->elements());
   for (int i = 0; i < elements.length(); ++i) {