patch applied (packages/base): reportStackOverflow now returns IO ()

[Ian Lynagh]

Fri Jul 10 08:32:57 PDT 2009  Ian Lynagh <igloo at earth.li>
  * reportStackOverflow now returns IO ()
  It used to do "return undefined" to return IO a.

    M ./GHC/Conc.lhs -2 +2

View patch online:
http://darcs.haskell.org/packages/base/_darcs/patches/20090710153257-3fd76-501c62a299560cdd1c58734baa2a5d825d4ac200.gz