[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
-------------------------------------+-------------------------------------
           Reporter:  goldfire       |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Template       |           Version:  8.1
  Haskell                            |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 If I say

 {{{#!hs
 [d| class Foo a where
       meth :: a -> b -> a |]
 }}}

 I would expect that the type signature for `meth` would quantify over `b`.
 It does not.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11797>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler