vlib/v/checker/tests/cast_to_byte_err.vv:10:7: error: cannot cast type `string` to `u8`
    8 | fn main() {
    9 |     // should be errors:
   10 |     _ := u8('hello')
      |          ~~~~~~~~~~~
   11 |     _ := u8(SAlias('hello'))
   12 |
vlib/v/checker/tests/cast_to_byte_err.vv:11:7: error: cannot cast type `SAlias` to `u8`
    9 |     // should be errors:
   10 |     _ := u8('hello')
   11 |     _ := u8(SAlias('hello'))
      |          ~~~~~~~~~~~~~~~~~~~
   12 | 
   13 |     // should be allowed: