[GHC] #7959: Panic on deriving nullary typeclass

[GHC]

#7959: Panic on deriving nullary typeclass
---------------------------------+------------------------------------------
    Reporter:  monoidal          |       Owner:  simonpj           
        Type:  bug               |      Status:  patch             
    Priority:  normal            |   Milestone:                    
   Component:  Compiler          |     Version:  7.7               
    Keywords:                    |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by simonpj):

  * owner:  => simonpj
  * difficulty:  => Unknown


-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler