[GHC] #10348: HEAD: `KnownNat` does not imply `Typeable` any more

[GHC]

#10348: HEAD: `KnownNat` does not imply `Typeable` any more
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        Reporter:  heisenbug         |                   Owner:  diatchki
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  7.12.1
       Component:  Compiler (Type    |                 Version:  7.11
  checker)                           |                Keywords:
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  GHC rejects       |               Test Case:
  valid program                      |                Blocking:
      Blocked By:                    |  Differential Revisions:
 Related Tickets:                    |
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Comment (by heisenbug):

 Replying to [comment:6 simonpj]:
 > Iavor says he'll do this over the weekend.
 >
 > Simon

 Thanks, that sounds good :-)

 These are presumably part of the future solution:
 {{{
 $ git grep typeLitTypeRep
 compiler/deSugar/DsBinds.hs:               ctr <- dsLookupGlobalId
 typeLitTypeRepName
 compiler/prelude/PrelNames.hs:        typeLitTypeRepName,
 compiler/prelude/PrelNames.hs:  , typeLitTypeRepName
 compiler/prelude/PrelNames.hs:typeLitTypeRepName    = varQual
 tYPEABLE_INTERNAL (fsLit "typeLitTypeRep") typeLitTypeRepKey
 compiler/prelude/PrelNames.hs:  , typeLitTypeRepKey
 compiler/prelude/PrelNames.hs:typeLitTypeRepKey = mkPreludeMiscIdUnique
 506
 libraries/base/Data/Typeable/Internal.hs:    typeLitTypeRep
 libraries/base/Data/Typeable/Internal.hs:typeLitTypeRep :: String ->
 TypeRep
 libraries/base/Data/Typeable/Internal.hs:typeLitTypeRep nm = rep
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10348#comment:7>
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