InitFS: use an existentially quantified type to generalize connection usage
InitFS: use an existentially quantified type to generalize connection usage

Ignore-this: ae4f48b6473aa4302c970c951823f492

darcs-hash:20090826022958-e018d-e4ac9983f39cefbb51aa388167e5a272e7e19e88.gz

nathankot/dbmigrations,creswick/dbmigrations,nick0x01/dbmigrations,anton-dessiatov/dbmigrations,jakubfijalkowski/dbmigrations