[GHC] #4863: TH crashes if you reify the Name of a dfun

[GHC]

#4863: TH crashes if you reify the Name of a dfun
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        Reporter:  guest             |                Owner:  simonpj
            Type:  bug               |               Status:  closed
        Priority:  low               |            Milestone:  ⊥
       Component:  Template Haskell  |              Version:  7.0.1
      Resolution:  fixed             |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Could someone add a regression test?  Thanks!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4863#comment:6>
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