Report promise reject with no handler (behind a flag).

src/factory.cc

 // Copyright 2014 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/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/conversions.h"
 #include "src/isolate-inl.h"
@@ skipping 1912 matching lines @@
   shared->set_num_literals(literals_array_size);
   if (IsGeneratorFunction(kind)) {
     shared->set_instance_class_name(isolate()->heap()->Generator_string());
     shared->DisableOptimization(kGenerator);
   }
   return shared;
 }
 
 
 Handle<JSMessageObject> Factory::NewJSMessageObject(
-    Handle<String> type,
-    Handle<JSArray> arguments,
-    int start_position,
-    int end_position,
-    Handle<Object> script,
+    Handle<String> type, Handle<JSArray> arguments, Handle<Object> promise,
+    int start_position, int end_position, Handle<Object> script,
     Handle<Object> stack_frames) {
   Handle<Map> map = message_object_map();
   Handle<JSMessageObject> message = New<JSMessageObject>(map, NEW_SPACE);
   message->set_properties(*empty_fixed_array(), SKIP_WRITE_BARRIER);
   message->initialize_elements();
   message->set_elements(*empty_fixed_array(), SKIP_WRITE_BARRIER);
   message->set_type(*type);
   message->set_arguments(*arguments);
+  message->set_promise(*promise);
   message->set_start_position(start_position);
   message->set_end_position(end_position);
   message->set_script(*script);
   message->set_stack_frames(*stack_frames);
   return message;
 }
 
 
 Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo(
     Handle<String> name,
@@ skipping 442 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal