Add stack trace to the promise reject callback.

include/v8.h

 // 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.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 4196 matching lines @@
 
 // --- Leave Script Callback ---
 typedef void (*CallCompletedCallback)();
 
 // --- Promise Reject Callback ---
 enum PromiseRejectEvent {
   kPromiseRejectWithNoHandler = 0,
   kPromiseHandlerAddedAfterReject = 1
 };
 
-typedef void (*PromiseRejectCallback)(Handle<Promise> promise,
-                                      Handle<Value> value,
-                                      PromiseRejectEvent event);
+class PromiseRejectMessage {
+ public:
+  PromiseRejectMessage(Handle<Promise> promise, PromiseRejectEvent event,
+                       Handle<Value> value, Handle<StackTrace> stack_trace)
+      : promise_(promise),
+        event_(event),
+        value_(value),
+        stack_trace_(stack_trace) {}
+
+  V8_INLINE Handle<Promise> GetPromise() const { return promise_; }
+  V8_INLINE PromiseRejectEvent GetEvent() const { return event_; }
+  V8_INLINE Handle<Value> GetValue() const { return value_; }
+  V8_INLINE Handle<StackTrace> GetStackTrace() const { return stack_trace_; }
+
+ private:
+  Handle<Promise> promise_;
+  PromiseRejectEvent event_;
+  Handle<Value> value_;
+  Handle<StackTrace> stack_trace_;
+};
+
+typedef void (*PromiseRejectCallback)(PromiseRejectMessage message);
 
 // --- Microtask Callback ---
 typedef void (*MicrotaskCallback)(void* data);
 
 // --- Failed Access Check Callback ---
 typedef void (*FailedAccessCheckCallback)(Local<Object> target,
                                           AccessType type,
                                           Local<Value> data);
 
 // --- AllowCodeGenerationFromStrings callbacks ---
@@ skipping 2812 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_