[GHC] #7891: Can't write type signature for top-level polymorphic pattern binding

[GHC]

#7891: Can't write type signature for top-level polymorphic pattern binding
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  Reporter:  MartijnVanSteenbergen           |          Owner:                  
      Type:  bug                             |         Status:  closed          
  Priority:  normal                          |      Milestone:                  
 Component:  Compiler (Type checker)         |        Version:  7.6.3           
Resolution:  duplicate                       |       Keywords:                  
        Os:  Unknown/Multiple                |   Architecture:  Unknown/Multiple
   Failure:  GHC rejects valid program       |     Difficulty:  Unknown         
  Testcase:  typecheck/should_compile/T7891  |      Blockedby:                  
  Blocking:                                  |        Related:  7268            
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Changes (by simonpj):

  * testcase:  => typecheck/should_compile/T7891
  * difficulty:  => Unknown


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7891#comment:2>
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