[GHC] #7965: The 'impossible' happened!

[GHC]

#7965: The 'impossible' happened!
---------------------------------+------------------------------------------
  Reporter:  adit                |          Owner:                
      Type:  bug                 |         Status:  closed        
  Priority:  normal              |      Milestone:                
 Component:  Compiler            |        Version:  7.4.1         
Resolution:  duplicate           |       Keywords:                
        Os:  MacOS X             |   Architecture:  x86_64 (amd64)
   Failure:  Compile-time crash  |     Difficulty:  Unknown       
  Testcase:                      |      Blockedby:                
  Blocking:                      |        Related:                
---------------------------------+------------------------------------------

Comment(by simonpj):

 Hmm. At first it looks like a dup of #5869 and #5361, but those are
 allegedly fixed, whereas you say this happens in HEAD.

 So yes, please open a ticket with repro instructions.

 Thanks

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7965#comment:4>
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