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

src/ic/ic.cc

Index: src/ic/ic.cc
diff --git a/src/ic/ic.cc b/src/ic/ic.cc
index fe474cdf956f27c4685e28bb90f241ba2c6b8f6f..3d9c7d73f277021be50303ad35ebd0ff8383ae22 100644
--- a/src/ic/ic.cc
+++ b/src/ic/ic.cc
@@ -828,9 +828,7 @@ Handle<Code> LoadGlobalIC::initialize_stub_in_optimized_code(
   return LoadGlobalICStub(isolate, LoadGlobalICState(extra_state)).GetCode();
 }
 
-Handle<Code> KeyedLoadIC::initialize_stub_in_optimized_code(
-    Isolate* isolate, ExtraICState extra_state) {
-  // TODO(ishell): remove extra_ic_state
+Handle<Code> KeyedLoadIC::initialize_stub_in_optimized_code(Isolate* isolate) {
   return KeyedLoadICStub(isolate).GetCode();
 }
 
@@ -1354,8 +1352,7 @@ void KeyedLoadIC::UpdateLoadElement(Handle<HeapObject> receiver) {
 
   if (target_receiver_maps.length() == 0) {
     Handle<Code> handler =
-        PropertyICCompiler::ComputeKeyedLoadMonomorphicHandler(
-            receiver_map, extra_ic_state());
+        ElementHandlerCompiler::GetKeyedLoadHandler(receiver_map, isolate());
     return ConfigureVectorState(Handle<Name>(), receiver_map, handler);
   }
 
@@ -1384,8 +1381,7 @@ void KeyedLoadIC::UpdateLoadElement(Handle<HeapObject> receiver) {
           target_receiver_maps.at(0)->elements_kind(),
           Handle<JSObject>::cast(receiver)->GetElementsKind())) {
     Handle<Code> handler =
-        PropertyICCompiler::ComputeKeyedLoadMonomorphicHandler(
-            receiver_map, extra_ic_state());
+        ElementHandlerCompiler::GetKeyedLoadHandler(receiver_map, isolate());
     return ConfigureVectorState(Handle<Name>(), receiver_map, handler);
   }