[GHC] #10079: Coercible solver regression: Couldn't match rep of () with Const () b

[GHC]

#10079: Coercible solver regression: Couldn't match rep of () with Const () b
-------------------------------------+-------------------------------------
        Reporter:  glguy             |                   Owner:  goldfire
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.10.1
       Component:  Compiler (Type    |                 Version:  7.10.1-rc1
  checker)                           |                Keywords:
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  GHC rejects       |               Test Case:  indexed-
  valid program                      |  types/should_compile/T10079
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D653
-------------------------------------+-------------------------------------
Changes (by goldfire):

 * owner:   => goldfire


Comment:

 For what it's worth, the fix just merged in ''does'' fix the problem
 stated in the ticket, and it doesn't make any of the issues from comment:9
 worse. There's just lots more room for improvement.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10079#comment:17>
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