redo grin, adding continuations, local functions, closures and regions
redo grin, adding continuations, local functions, closures and regions

darcs-hash:20060813021916-1a7c6-1e1ea9d84ebac28b19636286786e566018d93836

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