[GHC] #1746: GADT bug with -O2

[GHC]

#1746: GADT bug with -O2
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    Reporter:  igloo     |        Owner:  igloo   
        Type:  merge     |       Status:  new     
    Priority:  normal    |    Milestone:  6.8.1   
   Component:  Compiler  |      Version:  6.8     
    Severity:  normal    |   Resolution:          
    Keywords:            |   Difficulty:  Unknown 
          Os:  Unknown   |     Testcase:  simpl019
Architecture:  Unknown   |  
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Changes (by simonpj):

  * owner:  => igloo
  * type:  bug => merge

Comment:

 Fixed.  Please merge this patch
 {{{
 Sat Sep 29 03:44:06 PDT 2007  simonpj at microsoft.com
   * Fix Trac #1746: make rule-matching work properly with Cast expressions

   The Cast case of the rule-matcher was simply wrong.

   This patch fixes it; see Trac #1746.
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1746#comment:2>
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