[GHC] #12476: Error building HList

[GHC]

#12476: Error building HList
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        Reporter:  DanielWaterworth  |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * milestone:   => 8.0.2


Comment:

 The fix for #12242 has been merged to `ghc-8.0` but I still need to check
 whether this is now fixed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12476#comment:2>
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