[GHC] #5287: The 'impossible' happened. solveDerivEqns: probable loop

[GHC]

#5287: The 'impossible' happened.  solveDerivEqns: probable loop
-------------------------------+--------------------------------------------
    Reporter:  agocorona       |        Owner:  simonpj           
        Type:  bug             |       Status:  new               
    Priority:  normal          |    Milestone:  7.4.1             
   Component:  Compiler        |      Version:  7.0.3             
    Keywords:  solveDerivEqns  |     Testcase:                    
   Blockedby:                  |   Difficulty:                    
          Os:  Windows         |     Blocking:                    
Architecture:  x86             |      Failure:  Compile-time crash
-------------------------------+--------------------------------------------
Changes (by igloo):

  * milestone:  => 7.4.1


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5287#comment:7>
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