CTest uses syntex_syntax which doesn't support raw identifiers.

CTest fails on code that uses raw identifiers like r#type. Currently libc translation of structs that have a type field in c are translated as type_ because of that.

If CTest would support raw identifiers we could accurately use type as a field name in rust too.

[JohnTitor]

I'd say it would be quite hard as syntex is quite old. So we should:

1. Find the possible oldest version that supports the raw identifiers.
2. Update syntex (note that we now use https://github.com/JohnTitor/garando instead to remove some outdated dependencies)
3. Make sure that all the things aren't broken.

[JohnTitor]

Maybe we could use syn crate alternatively but it'd be a big change.