[GHC] #8778: Typeable TypeNats

[GHC]

#8778: Typeable TypeNats
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        Reporter:  dmcclean                 |            Owner:
            Type:  feature request          |           Status:  new
        Priority:  normal                   |        Milestone:  ⊥
       Component:  Compiler (Type checker)  |          Version:  7.8.1-rc1
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:  4385
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Comment (by sjoerd_visscher):

 Should the performance fix from #9203 be applied here too?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8778#comment:10>
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