[Atomics.waitAsync] Fix: enter a context when resolving promises

Bug: v8:10239, chromium:1115354
Change-Id: Ifcb28b4f83e729107b6cbf090cd57be466495177
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2351663Reviewed-by: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69393}

src/d8/async-hooks-wrapper.cc

@@ -128,6 +128,7 @@ void AsyncHooks::ShellPromiseHook(PromiseHookType type, Local<Promise> promise,
   HandleScope handle_scope(hooks->isolate_);
 
   Local<Context> currentContext = hooks->isolate_->GetCurrentContext();
+  DCHECK(!currentContext.IsEmpty());
 
   if (type == PromiseHookType::kInit) {
     ++hooks->current_async_id;

src/execution/futex-emulation.cc

@@ -749,6 +749,9 @@ void FutexEmulation::ResolveAsyncWaiterPromise(FutexWaitListNode* node) {
   USE(success);
 
   if (!node->promise_.IsEmpty()) {
+    DCHECK(!node->native_context_.IsEmpty());
+    Local<v8::Context> native_context = node->native_context_.Get(v8_isolate);
+    v8::Context::Scope contextScope(native_context);
     Handle<JSPromise> promise = Handle<JSPromise>::cast(
         Utils::OpenHandle(*node->promise_.Get(v8_isolate)));
     Handle<String> result_string;

src/objects/objects.cc

@@ -5331,6 +5331,8 @@ static void MoveMessageToPromise(Isolate* isolate, Handle<JSPromise> promise) {
 Handle<Object> JSPromise::Reject(Handle<JSPromise> promise,
                                  Handle<Object> reason, bool debug_event) {
   Isolate* const isolate = promise->GetIsolate();
+  DCHECK(
+      !reinterpret_cast<v8::Isolate*>(isolate)->GetCurrentContext().IsEmpty());
 
   if (isolate->debug()->is_active()) MoveMessageToPromise(isolate, promise);
 
@@ -5368,6 +5370,8 @@ Handle<Object> JSPromise::Reject(Handle<JSPromise> promise,
 MaybeHandle<Object> JSPromise::Resolve(Handle<JSPromise> promise,
                                        Handle<Object> resolution) {
   Isolate* const isolate = promise->GetIsolate();
+  DCHECK(
+      !reinterpret_cast<v8::Isolate*>(isolate)->GetCurrentContext().IsEmpty());
 
   isolate->RunPromiseHook(PromiseHookType::kResolve, promise,
                           isolate->factory()->undefined_value());