[GHC] #9103: hackage's type-level-0.2.4 fails to compile

[GHC]

#9103: hackage's type-level-0.2.4 fails to compile
-------------------------------------+-------------------------------------
        Reporter:  slyfox            |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler (Type    |                 Version:  7.8.2
  checker)                           |                Keywords:
      Resolution:  invalid           |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  GHC rejects       |               Test Case:
  valid program                      |                Blocking:
      Blocked By:                    |  Differential Revisions:
 Related Tickets:  #8634             |
-------------------------------------+-------------------------------------

Comment (by goldfire):

 Replying to [comment:10 jstolarek]:
 > I have to ask: how did you figure that out? I don;t see anything in the
 error message (nor in the code) that would suggest PolyKinds are causing
 the problem.

 I was just trying to figure out what could possibly be different between
 the two cases. With !PolyKinds on, the empty-datatype method produces an
 extra degree of freedom, in the kind of the parameter to `Succ`. Seeing
 nothing else which could be causing difficulty, I thought !PolyKinds would
 have to be the problem.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9103#comment:17>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler