emit premonomorphic ics for keyed loads/stores in optimized code

src/x87/lithium-codegen-x87.cc

Index: src/x87/lithium-codegen-x87.cc
diff --git a/src/x87/lithium-codegen-x87.cc b/src/x87/lithium-codegen-x87.cc
index 3421dca4a47f4c441dae75c5d31410cc94d8d2f5..f6f5958f50add4e7e70d26a865a066112712eaef 100644
--- a/src/x87/lithium-codegen-x87.cc
+++ b/src/x87/lithium-codegen-x87.cc
@@ -3508,7 +3508,9 @@ void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
     EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr);
   }
 
-  Handle<Code> ic = CodeFactory::KeyedLoadICInOptimizedCode(isolate()).code();
+  Handle<Code> ic =
+      CodeFactory::KeyedLoadICInOptimizedCode(
+          isolate(), instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
@@ -4805,8 +4807,9 @@ void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister()));
   DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
-  Handle<Code> ic =
-      CodeFactory::KeyedStoreIC(isolate(), instr->language_mode()).code();
+  Handle<Code> ic = CodeFactory::KeyedStoreICInOptimizedCode(
+                        isolate(), instr->language_mode(),
+                        instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }