[GHC] #8718: Add role annotations to base

[GHC]

#8718: Add role annotations to base
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        Reporter:  nomeata     |            Owner:
            Type:  task        |           Status:  new
        Priority:  high        |        Milestone:  7.8.1
       Component:              |          Version:  7.6.3
  libraries/base               |         Keywords:
      Resolution:              |     Architecture:  Unknown/Multiple
Operating System:              |       Difficulty:  Easy (less than 1 hour)
  Unknown/Multiple             |       Blocked By:
 Type of failure:              |  Related Tickets:
  None/Unknown                 |
       Test Case:              |
        Blocking:              |
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Comment (by goldfire):

 See also a very relevant thread starting here:
 http://www.haskell.org/pipermail/libraries/2013-November/021707.html

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8718#comment:1>
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