[GHC] #9193: GHC panic usinig HList and Lens

[GHC]

#9193: GHC panic usinig HList and Lens
-------------------------------+-------------------------------------------
        Reporter:  maxigit     |            Owner:
            Type:  bug         |           Status:  closed
        Priority:  normal      |        Milestone:
       Component:  Compiler    |          Version:  7.6.3
      Resolution:  fixed       |         Keywords:
Operating System:              |     Architecture:  x86
  Unknown/Multiple             |       Difficulty:  Easy (less than 1 hour)
 Type of failure:  GHCi crash  |       Blocked By:
       Test Case:              |  Related Tickets:
        Blocking:              |
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Comment (by maxigit):

 It's definitely a duplicate of #8225 : adding
 {{{
 import GHC.TypeLits
 }}}
 solves the problem. This workaround should be enough until I can get 7.8.*
 working.
 Thank you very much for your really quick answers.

 Max

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9193#comment:4>
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