[GHC] #8391: FunDeps coverage condition check failure with PolyKinds

[GHC]

#8391: FunDeps coverage condition check failure with PolyKinds
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        Reporter:  sbarclay                   |         Owner:
            Type:  bug                        |        Status:  closed
        Priority:  normal                     |     Milestone:
       Component:  Compiler                   |       Version:  7.7
      Resolution:  fixed                      |      Keywords:
Operating System:  Unknown/Multiple           |  Architecture:
 Type of failure:  GHC rejects valid program  |  Unknown/Multiple
      Blocked By:                             |     Test Case:
 Related Tickets:  #8356                      |  polykinds/T8391
                                              |      Blocking:
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"49d9b009a2affb6015b8f6e2f15e4660a53c0d9a/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="49d9b009a2affb6015b8f6e2f15e4660a53c0d9a"
 Fix fundep coverage-condition check for poly-kinds

 See Note [Closing over kinds in coverage] in FunDeps.
 I'd already fixed this bug once, for Trac #8391, but I put the
 call to closeOverKinds in the wrong place, so Trac #10109
 failed.  (It checks the /liberal/ coverage condition, which

 The fix was easy: move the call to the right place!
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8391#comment:5>
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