pprCtO (IPOccOrigin name)    = hsep [ptext (sLit "a use of implicit parameter"), quotes (ppr name)]
pprCtO (IPOccOrigin name)    = hsep [ptext (sLit "a use of implicit parameter"), quotes (ppr name)]
pprCtO (IPOccOrigin name)    = hsep [ptext (sLit "a use of implicit parameter"), quotes (ppr name)]