[GHC] #9260: Unnecessary error using GHC.TypeLits

[GHC]

#9260: Unnecessary error using GHC.TypeLits
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                   Owner:  diatchki
            Type:  bug               |                  Status:  new
        Priority:  low               |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.8.2
      Resolution:                    |                Keywords:  type lits,
                                     |  data kinds, error message
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by Thomas Miedema <thomasmiedema@…>):

 In [changeset:"58b5f04483258e55b93390fbf5ce41a1dbe23340/ghc" 58b5f04/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="58b5f04483258e55b93390fbf5ce41a1dbe23340"
 Testsuite: add typecheck/should_fail/T9260 (#9260)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9260#comment:7>
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