------------  Tickish  --------------
tidyTickish :: TidyEnv -> Tickish Id -> Tickish Id
tidyTickish env (Breakpoint ix ids) = Breakpoint ix (map (tidyVarOcc env) ids)
tidyTickish :: TidyEnv -> Tickish Id -> Tickish Id
tidyTickish env (Breakpoint ix ids) = Breakpoint ix (map (tidyVarOcc env) ids)
tidyTickish env (Breakpoint ix ids) = Breakpoint ix (map (tidyVarOcc env) ids)