[GHC] #5630: External Core needs love

[GHC]

#5630: External Core needs love
---------------------------------+------------------------------------------
    Reporter:  quux              |       Owner:                    
        Type:  bug               |      Status:  new               
    Priority:  normal            |   Milestone:  7.6.2             
   Component:  Compiler          |     Version:  7.2.1             
    Keywords:                    |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by igloo):

  * difficulty:  => Unknown


Comment:

 See also #7713, #8001.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5630#comment:8>
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