[GHC] #8950: Typeable instances for promoted lists and tuples

[GHC]

#8950: Typeable instances for promoted lists and tuples
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        Reporter:  kosmikus          |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  libraries/base    |          Version:  7.8.1-rc2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"e94ed11a09befd8a83e21b68cb3d492a6f7a8986/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="e94ed11a09befd8a83e21b68cb3d492a6f7a8986"
 With AutoDeriveTypeable, derive for promoted constructors, too.

 This addresses #8950. However, the problem isn't completely solved,
 because the Prelude types' Typeable instances are not created by
 AutoDeriveTypeable.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8950#comment:6>
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