public override bool Visit(
     UnifiedReferenceType element, VisitorArgument arg)
 {
     Writer.Write("/* & */");
     element.Type.TryAccept(this, arg);
     return false;
 }
 public override bool Visit(
     UnifiedReferenceType element, VisitorArgument arg)
 {
     Writer.Write("/* & */");
     element.Type.TryAccept(this, arg);
     return(false);
 }