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

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 422bf6843860e0b9200e3407ba955511ce0b55b7..99ab3b3f1a858f19b81f6cfa0ffabba6c2a8434c 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -3265,13 +3265,13 @@ class PromiseDebugEventScope {
         is_debug_active_(isolate_->debug()->is_active() &&
                          id != kDebugPromiseNoID && name_ != kDebugNotActive) {
     if (is_debug_active_) {
-      isolate_->debug()->OnAsyncTaskEvent(kDebugWillHandle, id_, name_);
+      isolate_->debug()->OnAsyncTaskEvent(debug::kDebugWillHandle, id_, name_);
     }
   }
 
   ~PromiseDebugEventScope() {
     if (is_debug_active_) {
-      isolate_->debug()->OnAsyncTaskEvent(kDebugDidHandle, id_, name_);
+      isolate_->debug()->OnAsyncTaskEvent(debug::kDebugDidHandle, id_, name_);
     }
   }