[strong] Implement strong mode restrictions on property access

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 8308edd969d311185954769ec742b41ad3d4c601..de128e68708354fca1ca1be94ca20298e18383ba 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -3025,9 +3025,10 @@ void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
 
   __ Move(LoadDescriptor::NameRegister(), instr->name());
   EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
-  Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(
-                        isolate(), NOT_CONTEXTUAL,
-                        instr->hydrogen()->initialization_state()).code();
+  Handle<Code> ic =
+      CodeFactory::LoadICInOptimizedCode(
+          isolate(), NOT_CONTEXTUAL, instr->hydrogen()->initialization_state(),
+          instr->hydrogen()->language_mode()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
@@ -3323,9 +3324,9 @@ void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
     EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr);
   }
 
-  Handle<Code> ic =
-      CodeFactory::KeyedLoadICInOptimizedCode(
-          isolate(), instr->hydrogen()->initialization_state()).code();
+  Handle<Code> ic = CodeFactory::KeyedLoadICInOptimizedCode(
+                        isolate(), instr->hydrogen()->initialization_state(),
+                        instr->hydrogen()->language_mode()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }