script {
    // check: fn main() -> (), !1 {
    fn main() -> (), !1 {
        entry():
	// check: v0 = const unit ()
        v0 = const unit ()
        ret () v0
    }

    // check: fn my_test_func() -> (), !4 {
    fn my_test_func() -> (), !4 {
        entry():
	// check: v0 = const unit ()
        v0 = const unit ()
        ret () v0
    }
}

// check: !0 = "a string\\n"
// check: !1 = span !0
// check: !2 = span !0
// check: !3 = decl_index 4
// check: !4 = (!2 !3)

!0 = "a string\\n"
!1 = span !0 9 21
!2 = span !0 307 341
!3 = decl_index 4
!4 = (!2 !3)