[GHC] #13244: Error Dealing with Unboxed Types and Type Families

[GHC]

#13244: Error Dealing with Unboxed Types and Type Families
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        Reporter:  sgschlesinger  |                Owner:
            Type:  bug            |               Status:  new
        Priority:  normal         |            Milestone:
       Component:  Compiler       |              Version:  8.0.1
      Resolution:                 |             Keywords:  pprIfaceCo
Operating System:  Linux          |         Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown   |            Test Case:
      Blocked By:                 |             Blocking:
 Related Tickets:                 |  Differential Rev(s):
       Wiki Page:                 |
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Comment (by sgschlesinger):

 I'm using stack with resolver lts-7.19 which uses ghc 8.0.1. I ran stack
 build --ghc-options -dcore-lint and got quite the atrocious output which I
 will attach to the issue. The error I got originally was from a dup of
 #12242 almost certainly, but could the -dcore-lint errors have been caused
 by that?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13244#comment:2>
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