Implement API functions for handling the AccessorDescriptor

src/handles.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 259 matching lines @@
 
 Handle<Object> DeleteElement(Handle<JSObject> obj, uint32_t index);
 Handle<Object> DeleteProperty(Handle<JSObject> obj, Handle<String> prop);
 
 Handle<Object> LookupSingleCharacterStringFromCode(uint32_t index);
 
 Handle<JSObject> Copy(Handle<JSObject> obj);
 
 Handle<Object> SetAccessor(Handle<JSObject> obj, Handle<AccessorInfo> info);
 
+Handle<Object> SetAccessor(Handle<JSObject> obj,
+                           Handle<String> key,
+                           bool is_getter,
+                           Handle<Object> fun,
+                           PropertyAttributes attributes);
+
+Handle<Object> GetAccessor(Handle<JSObject> obj,
+                           Handle<String> key,
+                           bool is_getter);
+
 Handle<FixedArray> AddKeysFromJSArray(Handle<FixedArray>,
                                       Handle<JSArray> array);
 
 // Get the JS object corresponding to the given script; create it
 // if none exists.
 Handle<JSValue> GetScriptWrapper(Handle<Script> script);
 
 // Script line number computations.
 void InitScriptLineEnds(Handle<Script> script);
 // For string calculates an array of line end positions. If the string
@@ skipping 80 matching lines @@
   inline NoHandleAllocation();
   inline ~NoHandleAllocation();
  private:
   int level_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HANDLES_H_