[strong] Implement strong property access semantics

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index cfcae0bd94e597a677b202900790c367530e9a19..e9b2e659a0adf3c6e3af2d46ace1c3a1328e3b26 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -4372,7 +4372,7 @@ void LoadICTrampolineStub::Generate(MacroAssembler* masm) {
 
 void KeyedLoadICTrampolineStub::Generate(MacroAssembler* masm) {
   EmitLoadTypeFeedbackVector(masm, LoadWithVectorDescriptor::VectorRegister());
-  KeyedLoadICStub stub(isolate());
+  KeyedLoadICStub stub(isolate(), state());
   stub.GenerateForTrampoline(masm);
 }
 
@@ -4551,7 +4551,7 @@ void KeyedLoadICStub::GenerateImpl(MacroAssembler* masm, bool in_frame) {
   __ CompareRoot(feedback, Heap::kmegamorphic_symbolRootIndex);
   __ j(not_equal, &try_poly_name);
   Handle<Code> megamorphic_stub =
-      KeyedLoadIC::ChooseMegamorphicStub(masm->isolate());
+      KeyedLoadIC::ChooseMegamorphicStub(masm->isolate(), GetExtraICState());
   __ jmp(megamorphic_stub, RelocInfo::CODE_TARGET);
 
   __ bind(&try_poly_name);