Re: [GHC] #11255: Expected kind ‘k0’, but has kind ‘(forall k. k, forall k. k)’

[GHC]

#11255: Expected kind ‘k0’, but has kind ‘(forall k. k, forall k. k)’
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        Reporter:  atnnn             |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  7.11
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"5e4e9e00dd36bf6316a406a14bc9482c7bcff527/ghc"
 5e4e9e00/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5e4e9e00dd36bf6316a406a14bc9482c7bcff527"
 Fix #11255.

 We need to instantiate types in tuples. Quite straightforward.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11255#comment:2>
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