patch applied (ghc-6.6/ghc): Fix an obscure bug in rule-matching

Ian Lynagh igloo at earth.li
Tue Jan 16 19:42:16 EST 2007

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Sat Jan 13 14:04:25 PST 2007  simonpj at microsoft.com
  * Fix an obscure bug in rule-matching
  
  This bug is the cause of Trac #1092.  The fix is easy
  by making the RnEnv2 implementation do the right thing.
  See Note [rnBndrLR] in VarEnv.
  
  Test case is simplCore/should_compile/rule1

    M ./compiler/basicTypes/VarEnv.lhs -2 +16

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