[GHC] #12976: GHCi displays the kinds of unboxed tuples incorrectly

[GHC]

#12976: GHCi displays the kinds of unboxed tuples incorrectly
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  GHCi              |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by RyanGlScott):

 This also affects unboxed sums, unsurprisingly:

 {{{
 λ> :set -fprint-explicit-runtime-reps -fprint-explicit-kinds -fprint-
 explicit-foralls -XUnboxedSums -XTemplateHaskell -XMagicHash
 λ> :m + GHC.Exts Language.Haskell.TH Language.Haskell.TH.Lib
 Language.Haskell.TH.Syntax
 λ> :k $(unboxedSumT 2)
 $(unboxedSumT 2) :: * -> * -> TYPE 'UnboxedSumRep
 λ> :k $(unboxedSumT 2) Int#
 $(unboxedSumT 2) Int# :: * -> TYPE 'UnboxedSumRep
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12976#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler