fn unknown_at_ct() int { return 0 }
fn main() {
mut foo := 0
$if foo == 0 {}
bar := unknown_at_ct()
$if bar == 0 {}
}
fn if_is() {
s := S1{}
$if huh.typ is T {}
$if s is int {}
$if s.i is 5 {}
$if s.i is T {}
struct S1 {
i int