[GHC] #14155: GHC mentions unlifted types out of the blue (to me anyway)

[GHC]

#14155: GHC mentions unlifted types out of the blue (to me anyway)
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:  TypeInType
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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Comment (by simonpj):

 OK: might you do this?  Not hard, it seems.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14155#comment:5>
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