[GHC] #10849: Injective type families broke debug build

[GHC]

#10849: Injective type families broke debug build
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        Reporter:  nomeata           |                   Owner:  jstolarek
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler (Type    |                 Version:  7.10.2
  checker)                           |
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Changes (by jstolarek):

 * cc: simonpj (added)


Comment:

 Yes, I am aware of this breakage. Sadly, the cause lies in the solver code
 written by Simon and I am unable to fix it. I spoke to Simon about this at
 ICFP and he promised to take a look.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10849#comment:1>
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