vlib/v/checker/tests/match_return_sumtype_mismatch_err.vv:15:11: error: return type mismatch, it should be `Myt`
   13 |     return match b {
   14 |         true { St('TRUE') }
   15 |         false { `F` }
      |                 ~~~
   16 |     }
   17 | }
