[KeyedLoadIC] Support Smi "handlers" for simple field loads

src/type-feedback-vector.cc

Index: src/type-feedback-vector.cc
diff --git a/src/type-feedback-vector.cc b/src/type-feedback-vector.cc
index 9ffc22e6a8a1bc09a86112595b7d3665526fdf26..61f5e8b9c7d095a74ceb34d7bd3b5be89f5652dc 100644
--- a/src/type-feedback-vector.cc
+++ b/src/type-feedback-vector.cc
@@ -688,7 +688,7 @@ void LoadGlobalICNexus::ConfigureHandlerMode(Handle<Code> handler) {
 
 void KeyedLoadICNexus::ConfigureMonomorphic(Handle<Name> name,
                                             Handle<Map> receiver_map,
-                                            Handle<Code> handler) {
+                                            Handle<Object> handler) {
   Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map);
   if (name.is_null()) {
     SetFeedback(*cell);