patch applied (ghc): Avoid hanging on to old unfoldings; fixes #4367 (compiler space regression)

[Ian Lynagh]

Wed Oct 20 06:15:39 PDT 2010  Ian Lynagh <igloo at earth.li>
  * Avoid hanging on to old unfoldings; fixes #4367 (compiler space regression)

    M ./compiler/simplCore/Simplify.lhs -2 +8

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20101020131539-3fd76-7e74d3629c41a6f2c71b41b58ef21578a4e04364.gz