patch applied (ghc-6.12/ghc): Fix Trac #3943: incorrect unused-variable warning

[Ian Lynagh]

Mon Apr 12 08:16:30 PDT 2010  simonpj at microsoft.com
  * Fix Trac #3943: incorrect unused-variable warning
  
  In fixing this I did the usual little bit of refactoring

    M ./compiler/rename/RnBinds.lhs -13 +16
    M ./compiler/rename/RnEnv.lhs -16 +11
    M ./compiler/rename/RnExpr.lhs -1 +2
    M ./compiler/rename/RnPat.lhs -2 +12

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc-6.12/ghc;a=darcs_commitdiff;h=20100412151630-1287e-322f9b45c6084e49bd44a549d421c91c4a927ef3.gz