[GHC] #11560: panic: isInjectiveTyCon sees a TcTyCon

[GHC]

#11560: panic: isInjectiveTyCon sees a TcTyCon
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        Reporter:  rwbarton          |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by goldfire):

 * owner:   => goldfire


Comment:

 This panic is gone (even in 8.0.1), but the code should be accepted. It's
 indeed a `TypeInType` error, and I imagine has nothing at all to do with
 injective type families.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11560#comment:6>
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