error: Unknown regex class english
 --> tests/ui/bad_predefine_class.rs:5:10
  |
5 |         #english
  |          ^^^^^^^

error: Unknown regex class english
  --> tests/ui/bad_predefine_class.rs:10:10
   |
10 |         ~english
   |          ^^^^^^^

error: expected one of: string literal, character literal, identifier, `#`, `~`
  --> tests/ui/bad_predefine_class.rs:15:9
   |
15 |         -latin
   |         ^