[GHC] #10642: Coercible regression from 7.10 to HEAD

[GHC]

#10642: Coercible regression from 7.10 to HEAD
-------------------------------------+-------------------------------------
        Reporter:  darchon           |                   Owner:  goldfire
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.11
      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:
-------------------------------------+-------------------------------------
Changes (by goldfire):

 * owner:   => goldfire
 * priority:  normal => highest
 * milestone:   => 7.12.1


Comment:

 Happily, this works with the tip of the ghc-7.10 branch.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10642#comment:2>
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