[GHC] #1797: type equality test leads to a looping type checker

[GHC]

#1797: type equality test leads to a looping type checker
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    Reporter:  guest     |        Owner:         
        Type:  bug       |       Status:  new    
    Priority:  normal    |    Milestone:         
   Component:  Compiler  |      Version:  6.8    
    Severity:  normal    |   Resolution:         
    Keywords:            |   Difficulty:  Unknown
          Os:  Unknown   |     Testcase:  FD4    
Architecture:  x86       |  
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Changes (by simonpj):

  * testcase:  => FD4

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1797#comment:3>
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