Return MaybeHandle from SetProperty.

src/handles.cc

 // Copyright 2012 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 140 matching lines @@
 void FlattenString(Handle<String> string) {
   CALL_HEAP_FUNCTION_VOID(string->GetIsolate(), string->TryFlatten());
 }
 
 
 Handle<String> FlattenGetString(Handle<String> string) {
   CALL_HEAP_FUNCTION(string->GetIsolate(), string->TryFlatten(), String);
 }
 
 
-Handle<Object> ForceSetProperty(Handle<JSObject> object,
-                                Handle<Object> key,
-                                Handle<Object> value,
-                                PropertyAttributes attributes) {
-  return Runtime::ForceSetObjectProperty(object->GetIsolate(), object, key,
-                                        value, attributes);
-}
-
-
 Handle<Object> DeleteProperty(Handle<JSObject> object, Handle<Object> key) {
   Isolate* isolate = object->GetIsolate();
   CALL_HEAP_FUNCTION(isolate,
                      Runtime::DeleteObjectProperty(
                          isolate, object, key, JSReceiver::NORMAL_DELETION),
                      Object);
 }
 
 
 Handle<Object> ForceDeleteProperty(Handle<JSObject> object,
@@ skipping 583 matching lines @@
                                    Handle<Code> code) {
   heap->EnsureWeakObjectToCodeTable();
   Handle<DependentCode> dep(heap->LookupWeakObjectToCodeDependency(*object));
   dep = DependentCode::Insert(dep, DependentCode::kWeaklyEmbeddedGroup, code);
   CALL_HEAP_FUNCTION_VOID(heap->isolate(),
                           heap->AddWeakObjectToCodeDependency(*object, *dep));
 }
 
 
 } }  // namespace v8::internal