[GHC] #11797: Template Haskell does not quantify over extra vars in class methods

[GHC]

#11797: Template Haskell does not quantify over extra vars in class methods
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        Reporter:  goldfire          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"dd99f2ece1bd139be02beddc6dc672862ee5ae34/ghc"
 dd99f2ec/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="dd99f2ece1bd139be02beddc6dc672862ee5ae34"
 Fix #11797.

 DsMeta curiously omitted quantified tyvars in certain circumstances.
 This patch means it doesn't.

 Test case: th/T11797
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11797#comment:1>
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