[GHC] #13407: Fix printing of higher-rank kinds

[GHC]

#13407: Fix printing of higher-rank kinds
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           Reporter:  goldfire       |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:  TypeInType     |  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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 Witness this GHCi session:

 {{{
 rae:09:18:37 ~/ghc/ghc> ghci -ignore-dot-ghci
 GHCi, version 8.0.1: http://www.haskell.org/ghc/  :? for help
 Prelude> :set -XTypeInType -XRankNTypes
 Prelude> import Data.Kind
 Prelude Data.Kind> data Foo :: (* -> *) -> (forall k. k -> *)
 Prelude Data.Kind> :info Foo
 type role Foo phantom nominal phantom
 data Foo (a :: * -> *) k (c :: k)
         -- Defined at <interactive>:3:1
 }}}

 The output from `:info` is terrible, treating `k` as a visible parameter
 when it isn't.

 This is spun off from #13399 but is not tightly coupled to that ticket.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13407>
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