[strong] Disallow implicit conversions for comparison

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 62c4c942a45c85a74ff716c0a115689aadbba335..d775a731e6b3f6e963f091178cb3d062f6d8a8ec 100644
--- a/src/x87/lithium-codegen-x87.cc
+++ b/src/x87/lithium-codegen-x87.cc
@@ -2780,7 +2780,7 @@ static Condition ComputeCompareCondition(Token::Value op) {
 void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) {
   Token::Value op = instr->op();
 
-  Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code();
+  Handle<Code> ic = CodeFactory::CompareIC(isolate(), op, SLOPPY).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 
   Condition condition = ComputeCompareCondition(op);
@@ -3052,7 +3052,8 @@ void LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr,
 void LCodeGen::DoCmpT(LCmpT* instr) {
   Token::Value op = instr->op();
 
-  Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code();
+  Handle<Code> ic =
+      CodeFactory::CompareIC(isolate(), op, instr->language_mode()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 
   Condition condition = ComputeCompareCondition(op);