[GHC] #13895: "Illegal constraint in a type" error - is it fixable?

[GHC]

#13895: "Illegal constraint in a type" error - is it fixable?
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12045            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by Iceland_jack):

 * related:   => #12045


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13895#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler