[GHC] #9123: Need for higher kinded roles

[GHC]

#9123: Need for higher kinded roles
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        Reporter:  simonpj           |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      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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Changes (by simonpj):

 * cc: ekmett@… (added)


Comment:

 Adding Edward in cc.   How bad would it be to leave `join` out of `Monad`,
 for now at any rate, so that we can get AMP implemented?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9123#comment:9>
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