[GHC] #14921: Type inference breaks on constraint-kinded parameter used by a Rank-2 callback

[GHC]

#14921: Type inference breaks on constraint-kinded parameter used by a Rank-2
callback
-------------------------------------+-------------------------------------
        Reporter:  glittershark      |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #10651, #15649    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * status:  new => closed
 * resolution:   => invalid
 * related:  #10651 => #10651, #15649


Comment:

 I'm going to close this, since the fact that this program doesn't
 typecheck is expected behavior (at least, according to the specification
 in the OutsideIn(X) paper, as explained in
 https://ghc.haskell.org/trac/ghc/ticket/10651#comment:2). See also #10651
 and #15649, which are similar tickets.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14921#comment:2>
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