vlib/v/checker/tests/fn_return_or_err.vv:6:17: error: unexpected `or` block, the function `pop` does not return an optional
    4 |
    5 | pub fn next(mut v []Typ) Typ {
    6 |     return v.pop() or { Typ{} }
      |                    ~~~~~~~~~~~~
    7 | }
    8 |
