[GHC] #7892: GHC accepts multiple conflicting kind signatures in type class declarations

[GHC]

#7892: GHC accepts multiple conflicting kind signatures in type class declarations
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  Reporter:  MartijnVanSteenbergen        |          Owner:                  
      Type:  bug                          |         Status:  closed          
  Priority:  normal                       |      Milestone:                  
 Component:  Compiler (Type checker)      |        Version:  7.6.3           
Resolution:  fixed                        |       Keywords:                  
        Os:  Unknown/Multiple             |   Architecture:  Unknown/Multiple
   Failure:  GHC accepts invalid program  |     Difficulty:  Unknown         
  Testcase:  typecheck/should_fail/T7892  |      Blockedby:                  
  Blocking:                               |        Related:                  
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Comment(by MartijnVanSteenbergen):

 Excellent, thank you!

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7892#comment:3>
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