3395 void Isolate::EnqueueMicrotask(Handle<Object> microtask) {  in Throw()  argument
3396   DCHECK(microtask->IsJSFunction() || microtask->IsCallHandlerInfo() ||  in Throw()
3397          microtask->IsPromiseResolveThenableJobInfo() ||  in Throw()
3398          microtask->IsPromiseReactionJobInfo());  in Throw()
3410   queue->set(num_tasks, *microtask);  in Throw()
3440       Handle<Object> microtask(queue->get(i), this);  in Throw()
3442       if (microtask->IsCallHandlerInfo()) {  in Throw()
3444             Handle<CallHandlerInfo>::cast(microtask);  in Throw()
3452         if (microtask->IsJSFunction()) {  in Throw()
3453           context = Handle<JSFunction>::cast(microtask)->context();  in Throw()
3454         } else if (microtask->IsPromiseResolveThenableJobInfo()) {  in Throw()
3456               Handle<PromiseResolveThenableJobInfo>::cast(microtask)->context();  in Throw()
3458           context = Handle<PromiseReactionJobInfo>::cast(microtask)->context();  in Throw()
3468         if (microtask->IsJSFunction()) {  in Throw()
3470               Handle<JSFunction>::cast(microtask);  in Throw()
3474         } else if (microtask->IsPromiseResolveThenableJobInfo()) {  in Throw()
3476               Handle<PromiseResolveThenableJobInfo>::cast(microtask), &result,  in Throw()
3479           PromiseReactionJob(Handle<PromiseReactionJobInfo>::cast(microtask),  in Throw()