[inspector] async stacks for Promise.then calls...

src/isolate.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/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 3183 matching lines @@
 namespace {
 class PromiseDebugEventScope {
  public:
   PromiseDebugEventScope(Isolate* isolate, Object* id, Object* name)
       : isolate_(isolate),
         id_(id, isolate_),
         name_(name, isolate_),
         is_debug_active_(isolate_->debug()->is_active() && id_->IsNumber() &&
                          name_->IsString()) {
     if (is_debug_active_) {
-      isolate_->debug()->OnAsyncTaskEvent(
-          isolate_->factory()->will_handle_string(), id_,
-          Handle<String>::cast(name_));
+      isolate_->debug()->OnAsyncTaskEvent(debug::WillHandle, id_,
+                                          Handle<String>::cast(name_));
     }
   }
 
   ~PromiseDebugEventScope() {
     if (is_debug_active_) {
-      isolate_->debug()->OnAsyncTaskEvent(
-          isolate_->factory()->did_handle_string(), id_,
-          Handle<String>::cast(name_));
+      isolate_->debug()->OnAsyncTaskEvent(debug::DidHandle, id_,
+                                          Handle<String>::cast(name_));
     }
   }
 
  private:
   Isolate* isolate_;
   Handle<Object> id_;
   Handle<Object> name_;
   bool is_debug_active_;
 };
 }  // namespace
@@ skipping 343 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8