[GHC] #816: Weird fundep behavior (with -fallow-undecidable-instances)

[GHC]

#816: Weird fundep behavior (with -fallow-undecidable-instances)
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 Reporter:  nibro                    |          Owner:  simonpj
     Type:  bug                      |         Status:  new    
 Priority:  normal                   |      Milestone:  _|_    
Component:  Compiler (Type checker)  |        Version:  6.4.2  
 Severity:  normal                   |     Resolution:         
 Keywords:                           |     Difficulty:  Unknown
 Testcase:  tc216                    |   Architecture:  Unknown
       Os:  Unknown                  |  
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/816#comment:7>
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