patch applied (ghc-6.8/ghc): Fix Trac #1654: make substitutions propagate into CoreRule

[Simon Peyton Jones]

Thu Nov  8 09:48:35 PST 2007  simonpj at microsoft.com
  * Fix Trac #1654: make substitutions propagate into CoreRule
  
  Nasty bug in substSpec: the ru_fn field was not getting updated
  when the parent function's unique changed.  Urk.
  
  This patch goes on the branch; I'll do another for the HEAD.
  

    M ./compiler/coreSyn/CoreSubst.lhs -7 +9
    M ./compiler/simplCore/SimplEnv.lhs -1 +1