patch applied (ghc): Make the case-to-let transformation a little less eager

[Simon Peyton Jones]

Wed Dec  8 09:22:51 PST 2010  simonpj at microsoft.com
  * Make the case-to-let transformation a little less eager
  
  See Note [Case elimination: lifted case].
  Thanks to Roman for identifying this case.

    M ./compiler/simplCore/Simplify.lhs -19 +25

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20101208172251-1287e-4e3051b6f06899482037b9586cce665caf9d09ec.gz