[GHC] #11407: -XTypeInType uses up all memory when used in data family instance

[GHC]

#11407: -XTypeInType uses up all memory when used in data family instance
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        Reporter:  RyanGlScott       |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.0.1
       Component:  Compiler (Type    |              Version:  8.0.1-rc1
  checker)                           |             Keywords:  TypeInType,
      Resolution:                    |  TypeFamilies
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Hmm, on `master` this merely results in a stack overflow, not that this is
 much of an improvement.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11407#comment:5>
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