Strict mode fixes.

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 87f691cfbd8f59b6dc9c1d5807a4b64e10dd53e9..ccade9aadec9a98ae3ae3a371fa8c038227ef85e 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2075,7 +2075,9 @@ void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) {
   ASSERT(ToRegister(instr->value()).is(rax));
 
   __ Move(rcx, instr->name());
-  Handle<Code> ic = isolate()->builtins()->StoreIC_Initialize();
+  Handle<Code> ic = instr->strict_mode()
+      ? isolate()->builtins()->StoreIC_Initialize_Strict()
+      : isolate()->builtins()->StoreIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr);
 }
 
@@ -2942,7 +2944,7 @@ void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   ASSERT(ToRegister(instr->value()).is(rax));
 
   __ Move(rcx, instr->hydrogen()->name());
-  Handle<Code> ic = info_->is_strict_mode()
+  Handle<Code> ic = instr->strict_mode()
       ? isolate()->builtins()->StoreIC_Initialize_Strict()
       : isolate()->builtins()->StoreIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
@@ -3038,7 +3040,7 @@ void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->key()).is(rcx));
   ASSERT(ToRegister(instr->value()).is(rax));
 
-  Handle<Code> ic = info_->is_strict_mode()
+  Handle<Code> ic = instr->strict_mode()
       ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()
       : isolate()->builtins()->KeyedStoreIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);