public override FormObject VisitQuestion(QLMainParser.QuestionContext context)
{
string identifier = context.id().GetText();
PositionInText IdPosition = new PositionInText(context.id());
PositionInText position = new PositionInText(context);
Types.Type typeName = context.type().Accept(new TypeVisitor());
Expression computation = context.computed() != null?context.computed().expression().Accept(new ExpressionVisitor()) : null;
return(new Question(new Id(identifier, IdPosition), typeName, MakeLabel(context.label()), computation,
position));
}