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

src/api.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.
 
 #ifndef V8_API_H_
 #define V8_API_H_
 
 #include "src/v8.h"
 
 #include "include/v8-testing.h"
@@ skipping 214 matching lines @@
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
   static inline Local<Int32Array> ToLocalInt32Array(
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
   static inline Local<Float32Array> ToLocalFloat32Array(
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
   static inline Local<Float64Array> ToLocalFloat64Array(
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
 
   static inline Local<Message> MessageToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
+  static inline Local<Promise> PromiseToLocal(
+      v8::internal::Handle<v8::internal::JSObject> obj);
   static inline Local<StackTrace> StackTraceToLocal(
       v8::internal::Handle<v8::internal::JSArray> obj);
   static inline Local<StackFrame> StackFrameToLocal(
       v8::internal::Handle<v8::internal::JSObject> obj);
   static inline Local<Number> NumberToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
   static inline Local<Integer> IntegerToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
   static inline Local<Uint32> Uint32ToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
@@ skipping 103 matching lines @@
 MAKE_TO_LOCAL(ToLocal, JSTypedArray, TypedArray)
 
 TYPED_ARRAYS(MAKE_TO_LOCAL_TYPED_ARRAY)
 
 MAKE_TO_LOCAL(ToLocal, FunctionTemplateInfo, FunctionTemplate)
 MAKE_TO_LOCAL(ToLocal, ObjectTemplateInfo, ObjectTemplate)
 MAKE_TO_LOCAL(ToLocal, SignatureInfo, Signature)
 MAKE_TO_LOCAL(AccessorSignatureToLocal, FunctionTemplateInfo, AccessorSignature)
 MAKE_TO_LOCAL(ToLocal, TypeSwitchInfo, TypeSwitch)
 MAKE_TO_LOCAL(MessageToLocal, Object, Message)
+MAKE_TO_LOCAL(PromiseToLocal, JSObject, Promise)
 MAKE_TO_LOCAL(StackTraceToLocal, JSArray, StackTrace)
 MAKE_TO_LOCAL(StackFrameToLocal, JSObject, StackFrame)
 MAKE_TO_LOCAL(NumberToLocal, Object, Number)
 MAKE_TO_LOCAL(IntegerToLocal, Object, Integer)
 MAKE_TO_LOCAL(Uint32ToLocal, Object, Uint32)
 MAKE_TO_LOCAL(ExternalToLocal, JSObject, External)
 MAKE_TO_LOCAL(ToLocal, DeclaredAccessorDescriptor, DeclaredAccessorDescriptor)
 
 #undef MAKE_TO_LOCAL_TYPED_ARRAY
 #undef MAKE_TO_LOCAL
@@ skipping 321 matching lines @@
     stress_type_ = stress_type;
   }
 
  private:
   static v8::Testing::StressType stress_type_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_API_H_