patch applied (packages/base): Add Applicative instances for ST monads (proposal #4455)

[Ross Paterson]

Mon Jan  3 10:57:22 PST 2011  Ross Paterson <ross at soi.city.ac.uk>
  * Add Applicative instances for ST monads (proposal #4455)
  
  patch from Bas van Dijk

    M ./Control/Applicative.hs +10

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/base;a=darcs_commitdiff;h=20110103185722-b47d3-db7d5652112035953d7754f8fe27fc47446fd588.gz