#7422: GHC panics while trying to derive Generic for GADT with kind-lifted 
phantom
parameter
---------------------------------+------------------------------------------
  Reporter:  rpglover64          |          Owner:         
      Type:  bug                 |         Status:  closed 
  Priority:  normal              |      Milestone:         
 Component:  Compiler            |        Version:  7.4.1  
Resolution:  duplicate           |       Keywords:         
        Os:  MacOS X             |   Architecture:  x86    
   Failure:  Compile-time crash  |     Difficulty:  Unknown
  Testcase:  polykinds/T7422     |      Blockedby:         
  Blocking:                      |        Related:         
---------------------------------+------------------------------------------
Changes (by simonpj):

  * testcase:  => polykinds/T7422
  * difficulty:  => Unknown


Comment:

 I've added a regression test to be on the safe side.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7422#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler

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