module util
struct Thing {
	name StringOrNone
}
fn test_string_or_none_string() {
	thing := Thing{
		name: StringOrNone('bob')
	}
	println(thing)
	assert thing.name is string
}
fn test_string_or_none_none() {
	thing := Thing{
		name: StringOrNone(None{})
	}
	println(thing)
	assert thing.name is None
}

module util
type StringOrNone = None | string
pub struct None {}

import util

	name string

	name util.StringOrNone

		name: cols[1]

		name: util.StringOrNone(cols[1])

		if room.name.len > 0 { // VBUG room_name := room.name {

		if room.name is string { // VBUG room_name := room.name {

		if room.name.len > 0 { // this_room_name := room.name {

		if room.name is string { // this_room_name := room.name {

	if room.name.len > 0 { // VBUG: name := room.name {

	if room.name is string { // VBUG: name := room.name {