patch applied (packages/haskell2010): add cast{C,U}CharToChar and castCharTo{C,U}Char, from Haskell 2010

[Simon Marlow]

Wed Jul 14 07:15:02 PDT 2010  Simon Marlow <marlowsd at gmail.com>
  * add cast{C,U}CharToChar and castCharTo{C,U}Char, from Haskell 2010

    M ./Foreign/C/String.hs +5

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/haskell2010;a=darcs_commitdiff;h=20100714141502-12142-36fbe7ab60a8f6606ecbca7a27e4109d660752c8.gz