vlib/v/checker/tests/match_duplicate_branch_mixed_int_literals.vv:3:3: error: match case `10` is handled more than once
    1 | fn parse(ch u8) ! {
    2 |     match ch {
    3 |         ` `, `\t`, `\n`, 10 {
      |         ~~~~~~~~~~~~~~~~~~~
    4 |             // consume blanks
    5 |         }
vlib/v/checker/tests/match_duplicate_branch_mixed_int_literals.vv:17:3: error: match case `10` is handled more than once
   15 | fn parse_cast(ch u8) ! {
   16 |     match ch {
   17 |         `\n`, u8(10) {
      |         ~~~~~~~~~~~~
   18 |             println('line feed')
   19 |         }