patch applied (ghc): Fix Trac #4396, by localising pattern binders in the desugarer

[Simon Peyton Jones]

Thu Oct 21 10:03:24 PDT 2010  simonpj at microsoft.com
  * Fix Trac #4396, by localising pattern binders in the desugarer
  
  See Note [Localise pattern binders]

    M ./compiler/deSugar/DsUtils.lhs -5 +43

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20101021170324-1287e-a416add19e5e4365ae2222eba162194f974fea1b.gz