error: 'u8' is a reserved type name and cannot be used as an identifier
  --> examples/1122-diagnostics-reserved-name-impl-method.sx:19:24
   |
19 |     go :: (self: *Box, u8: s64) {
   |                        ^^

error: 's2' is a reserved type name and cannot be used as an identifier
  --> examples/1122-diagnostics-reserved-name-impl-method.sx:20:9
   |
20 |         s2 := Box.{ total = 1 };
   |         ^^