//ww:run-exit 42
// Migrated from 772_typeassert_nonident row call_as_str.
package main;
fn f(b: bool) (size | str) = {
    if (b) { return "AB"; };
    return 0: size;
};
export fn main() i32 = {
    let s = f(true) as str;
    return s.len: i32 + 40;
};