[GHC] #11767: Add @since annotations for base instances

[GHC]

#11767: Add @since annotations for base instances
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        Reporter:  bgamari           |                Owner:  seraphime
            Type:  task              |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Core Libraries    |              Version:  7.10.3
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11768            |  Differential Rev(s):  Phab:D2277
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"a90085bd45239fffd65c01c24752a9bbcef346f1/ghc" a90085b/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="a90085bd45239fffd65c01c24752a9bbcef346f1"
 Add @since annotations to base instances

 Add @since annotations to instances in `base`.

 Test Plan:
  * ./validate  # some commets shouldn't break the build
  * review the annotations for absurdities.

 Reviewers: ekmett, goldfire, RyanGlScott, austin, hvr, bgamari

 Reviewed By: RyanGlScott, hvr, bgamari

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2277

 GHC Trac Issues: #11767
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11767#comment:10>
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