Allow JavaScript accessors on API objects.

src/api-natives.h

 // Copyright 2015 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_NATIVES_H_
 #define V8_API_NATIVES_H_
 
 #include "src/handles.h"
 #include "src/property-details.h"
 
@@ skipping 27 matching lines @@
   static Handle<JSFunction> CreateApiFunction(Isolate* isolate,
                                               Handle<FunctionTemplateInfo> obj,
                                               Handle<Object> prototype,
                                               ApiInstanceType instance_type);
 
   static void AddDataProperty(Isolate* isolate, Handle<TemplateInfo> info,
                               Handle<Name> name, Handle<Object> value,
                               PropertyAttributes attributes);
 
   static void AddAccessorProperty(Isolate* isolate, Handle<TemplateInfo> info,
-                                  Handle<Name> name,
-                                  Handle<FunctionTemplateInfo> getter,
-                                  Handle<FunctionTemplateInfo> setter,
+                                  Handle<Name> name, Handle<Object> getter,
+                                  Handle<Object> setter,
                                   PropertyAttributes attributes);
 
   static void AddNativeDataProperty(Isolate* isolate, Handle<TemplateInfo> info,
                                     Handle<AccessorInfo> property);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif