[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:  8767        |
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Comment (by Herbert Valerio Riedel <hvr@…>):

 In [changeset:"e55acf007f5109b42a2e388eaca63445bbbc7376/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="e55acf007f5109b42a2e388eaca63445bbbc7376"
 Update to containers-0.5.5.0

 This adds role annotations to Map and Set and therefore addresses #8718

 Signed-off-by: Herbert Valerio Riedel <hvr at gnu.org>
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8718#comment:3>
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