[GHC] #10100: Bogus "redundant constraint" warning with functional dependencies

[GHC]

#10100: Bogus "redundant constraint" warning with functional dependencies
-------------------------------------+-------------------------------------
        Reporter:  jstolarek         |                   Owner:  simonpj
            Type:  bug               |                  Status:  merge
        Priority:  normal            |               Milestone:  7.10.1
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |  typecheck/should_compile/T10100
                                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => merge
 * testcase:   => typecheck/should_compile/T10100


Comment:

 I've fixed this and added the example as a test.

 Merge to 7.10

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10100#comment:4>
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