fix complement method of Data.Bits.Bits for integral built in types
fix complement method of Data.Bits.Bits for integral built in types

darcs-hash:20060309041708-1a7c6-c282e3b97545c694ab9ad805210c26ef32b42e89

jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc