[GHC] #11592: Self-kinded type varialbe accepted

[GHC]

#11592: Self-kinded type varialbe accepted
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           Reporter:  simonpj        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  7.10.3
           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:
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 Found when chasing #11407
 {{{
 data T (a::a) = Blah -- Accepted

 data S (b :: a) a = ...
   -- Rejected with: variable ‘a’ used as a kind variable before being
 bound
   --                as a type variable. Perhaps reorder your variables?
 }}}
 But `T` should be rejected too, for the same reason as `S`

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11592>
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