Add back parens to make the diff smaller

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -2067,6 +2067,7 @@ void Converter::ConvertBinaryOperator(clang::BinaryOperator *expr) {
 }
 
 void Converter::ConvertGenericBinaryOperator(clang::BinaryOperator *expr) {
+  PushParen outer(*this);
   {
     PushParen lhs_paren(*this);
     Convert(expr->getLHS());

cpp2rust/converter/models/converter_refcount.cpp

@@ -1840,6 +1840,7 @@ void ConverterRefCount::ConvertGenericBinaryOperator(
     return;
   }
 
+  PushParen outer(*this);
   Convert(lhs);
   StrCat(opcode);
   Convert(rhs);