[strong] Disallow implicit conversions for binary arithmetic operations

src/compiler/js-typed-lowering.h

Index: src/compiler/js-typed-lowering.h
diff --git a/src/compiler/js-typed-lowering.h b/src/compiler/js-typed-lowering.h
index d9f2552c5bedc8623a72e67238c8e76ad1585bed..30c204d26aa5d506c23964155eae80c1df55309f 100644
--- a/src/compiler/js-typed-lowering.h
+++ b/src/compiler/js-typed-lowering.h
@@ -55,6 +55,7 @@ class JSTypedLowering final : public Reducer {
   Reduction ReduceJSToStringInput(Node* input);
   Reduction ReduceJSToString(Node* node);
   Reduction ReduceNumberBinop(Node* node, const Operator* numberOp);
+  Reduction ReduceStrongNumberBinop(Node* node, const Operator* numberOp);
   Reduction ReduceInt32Binop(Node* node, const Operator* intOp);
   Reduction ReduceUI32Shift(Node* node, Signedness left_signedness,
                             const Operator* shift_op);