-error_type_unk.nit:22,17--20: Type error: class Fail not found in module error_type_unk.
-error_type_unk.nit:23,7--11: Error: Method '+' doesn't exists in Bool.
+error_type_unk.nit:22,17--20: Error: class `Fail` not found in module `error_type_unk`.
+error_type_unk.nit:23,9: Error: method `+` does not exists in `Bool`.