vlib/v/checker/tests/generics_field_struct_arr_err.vv:26:7: error: `Callback` type is generic sumtype, must specify the generic type names, e.g. Callback[T], Callback[int]
   24 |     v    T
   25 |     prev T
   26 |     cb   []Callback // sumtype
      |          ~~~~~~~~~~
   27 |     cb2  []CBvret2  // alias
   28 |     cb3  []Test     // struct
vlib/v/checker/tests/generics_field_struct_arr_err.vv:27:7: error: `CBvret2` type is generic fn type, must specify the generic type names, e.g. CBvret2[T], CBvret2[int]
   25 |     prev T
   26 |     cb   []Callback // sumtype
   27 |     cb2  []CBvret2  // alias
      |          ~~~~~~~~~
   28 |     cb3  []Test     // struct
   29 | }
vlib/v/checker/tests/generics_field_struct_arr_err.vv:28:7: error: `Test` type is generic struct, must specify the generic type names, e.g. Test[T], Test[int]
   26 |     cb   []Callback // sumtype
   27 |     cb2  []CBvret2  // alias
   28 |     cb3  []Test     // struct
      |          ~~~~~~
   29 | }
