[GHC] #12432: Use kind equality in instance context in type family instance

[GHC]

#12432: Use kind equality in instance context in type family instance
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        Reporter:  j6carey           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 I'm sorry; I'm still lost.

 Are you saying that there is a still-open bug, described in comment:3, and
 that's what the ticket is now about?  If so let's either change the
 Description, or open a new ticket that actually describes the bug.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12432#comment:8>
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