("in",rest) -> cont TKin rest
("case",rest) -> cont TKcase rest
("of",rest) -> cont TKof rest
- ("coerce",rest) -> cont TKcoerce rest
+ ("cast",rest) -> cont TKcast rest
("note",rest) -> cont TKnote rest
("external",rest) -> cont TKexternal rest
("_",rest) -> cont TKwild rest