[GHC] #8821: Functional dependency coverage check does not use type equalities

[GHC]

#8821: Functional dependency coverage check does not use type equalities
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        Reporter:  glguy                    |            Owner:
            Type:  bug                      |           Status:  closed
        Priority:  normal                   |        Milestone:
       Component:  Compiler (Type checker)  |          Version:  7.6.3
      Resolution:  invalid                  |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Changes (by glguy):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Iavor explained that Undecidable Instances is allowing the functional
 dependency to consider the context and that the test is working.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8821#comment:1>
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