[GHC] #8966: Pattern synonyms and kind-polymorphism

[GHC]

#8966: Pattern synonyms and kind-polymorphism
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        Reporter:  kosmikus                   |            Owner:  simonpj
            Type:  bug                        |           Status:  new
        Priority:  normal                     |        Milestone:
       Component:  Compiler (Type checker)    |          Version:
      Resolution:                             |  7.8.1-rc2
Operating System:  Unknown/Multiple           |         Keywords:
 Type of failure:  GHC rejects valid program  |     Architecture:
       Test Case:                             |  Unknown/Multiple
        Blocking:                             |       Difficulty:  Unknown
                                              |       Blocked By:
                                              |  Related Tickets:
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"4dc9f9869bfc82fdb8bd61864859007873ebcc27/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="4dc9f9869bfc82fdb8bd61864859007873ebcc27"
 Zonk the existential type variables in tcPatSynDecl

 This was just an omission, which showed up as Trac #8966
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8966#comment:2>
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