[strong] Disallow implicit conversions for binary arithmetic operations

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index 60c6b51580ba88faa702a0aa1d249f7fcc02fc47..18c0237919c911dec22b84a03a1ab0a29352afc5 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -2152,7 +2152,8 @@ void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
 
   __ Bind(&stub_call);
 
-  Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), op).code();
+  Handle<Code> code = CodeFactory::BinaryOpIC(
+      isolate(), op, language_mode()).code();
   {
     Assembler::BlockPoolsScope scope(masm_);
     CallIC(code, expr->BinaryOperationFeedbackId());
@@ -2234,7 +2235,8 @@ void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
 
 void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr, Token::Value op) {
   __ Pop(x1);
-  Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), op).code();
+  Handle<Code> code = CodeFactory::BinaryOpIC(
+      isolate(), op, language_mode()).code();
   JumpPatchSite patch_site(masm_);    // Unbound, signals no inlined smi code.
   {
     Assembler::BlockPoolsScope scope(masm_);
@@ -4683,7 +4685,8 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
 
   {
     Assembler::BlockPoolsScope scope(masm_);
-    Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), Token::ADD).code();
+    Handle<Code> code = CodeFactory::BinaryOpIC(
+        isolate(), Token::ADD, language_mode()).code();
     CallIC(code, expr->CountBinOpFeedbackId());
     patch_site.EmitPatchInfo();
   }