[inspector] migrate AsycEvent to tupple

src/debug/debug.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/debug/debug.h"
 
 #include <memory>
 
 #include "src/api.h"
 #include "src/arguments.h"
@@ skipping 1828 matching lines @@
 
 void Debug::OnAsyncTaskEvent(debug::AsyncTaskEventType type, Handle<Object> id,
                              Handle<String> name) {
   DCHECK(id->IsNumber());
   if (in_debug_scope() || ignore_events()) return;
 
   HandleScope scope(isolate_);
   DebugScope debug_scope(this);
   if (debug_scope.failed()) return;
 
+  Handle<Smi> type_smi(Smi::FromInt(type), isolate_);
+  if (event_listener_.is_null()) {
+    ProcessDebugEvent(v8::AsyncTaskEvent,
+                      Handle<JSObject>::cast(
+                          isolate_->factory()->NewTuple3(type_smi, id, name)),
+                      true);
+    return;
+  }
+
   // Create the script collected state object.
   Handle<Object> event_data;
   // Bail out and don't call debugger if exception.
-  Handle<Smi> type_smi(Smi::FromInt(type), isolate_);
   if (!MakeAsyncTaskEvent(type_smi, id, name).ToHandle(&event_data)) return;
 
   // Process debug event.
   ProcessDebugEvent(v8::AsyncTaskEvent, Handle<JSObject>::cast(event_data),
                     true);
 }
 
 void Debug::ProcessDebugEvent(v8::DebugEvent event, Handle<JSObject> event_data,
                               bool auto_continue) {
   HandleScope scope(isolate_);
@@ skipping 690 matching lines @@
   logger_->DebugEvent("Put", message.text());
 }
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 }  // namespace internal
 }  // namespace v8