[GHC] #10767: SPECIALIZE generates warning but works fine

[GHC]

#10767: SPECIALIZE generates warning but works fine
-------------------------------------+-------------------------------------
        Reporter:  osa1              |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:  8.0.1
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
                                     |  deSugar/should_compile/T10767
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by thomie):

 * testcase:   => deSugar/should_compile/T10767
 * status:  new => closed
 * resolution:   => fixed
 * milestone:   => 8.0.1


Comment:

 Fixed in HEAD. I added a test.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10767#comment:2>
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