[strong] Disallow implicit conversions for binary arithmetic operations

src/ppc/lithium-codegen-ppc.cc

Index: src/ppc/lithium-codegen-ppc.cc
diff --git a/src/ppc/lithium-codegen-ppc.cc b/src/ppc/lithium-codegen-ppc.cc
index 191d486b9c4a766d45732864d1ff5106ec24de2e..5ed21459946d11b6c9b12444c316ad43d1f97926 100644
--- a/src/ppc/lithium-codegen-ppc.cc
+++ b/src/ppc/lithium-codegen-ppc.cc
@@ -2193,7 +2193,8 @@ void LCodeGen::DoArithmeticT(LArithmeticT* instr) {
   DCHECK(ToRegister(instr->right()).is(r3));
   DCHECK(ToRegister(instr->result()).is(r3));
 
-  Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), instr->op()).code();
+  Handle<Code> code = CodeFactory::BinaryOpIC(
+      isolate(), instr->op(), language_mode()).code();
   CallCode(code, RelocInfo::CODE_TARGET, instr);
 }