[WeakRefs] Fix toStringTag

Bug: v8:8179
Change-Id: I45f9b1c462edcc984d2b8cdc6c767c00e9f8cf64
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1714873
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62876}

src/init/bootstrapper.cc

@@ -4367,7 +4367,7 @@ void Genesis::InitializeGlobal_harmony_weak_refs() {
     JSObject::ForceSetPrototype(cleanup_iterator_prototype, iterator_prototype);
 
     InstallToStringTag(isolate(), cleanup_iterator_prototype,
-                       "JSFinalizationGroupCleanupIterator");
+                       "FinalizationGroup Cleanup Iterator");
 
     SimpleInstallFunction(isolate(), cleanup_iterator_prototype, "next",
                           Builtins::kFinalizationGroupCleanupIteratorNext, 0,

test/test262/test262.status

@@ -536,7 +536,6 @@
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=8179
   'built-ins/FinalizationGroup/FinalizationGroupCleanupIteratorPrototype/next-job-not-active-throws': [FAIL],
-  'built-ins/FinalizationGroup/FinalizationGroupCleanupIteratorPrototype/Symbol.toStringTag': [FAIL],
   'built-ins/FinalizationGroup/prototype/cleanupSome/poisoned-callback-throws': [FAIL],
   'built-ins/FinalizationGroup/prototype/cleanupSome/poisoned-cleanup-callback-throws': [FAIL],
   'built-ins/FinalizationGroup/prototype/register/holdings-same-as-target': [FAIL],