[GHC] #12185: Can't call rank-2 function with type family constraint

[GHC]

#12185: Can't call rank-2 function with type family constraint
-------------------------------------+-------------------------------------
        Reporter:  crockeea          |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 Ha!  Happily this is the same problem as #12175, and hence already fixed.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12185#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler