[GHC] #10280: ApiAnnotations : AnnComma missing in TupleSection

[GHC]

#10280: ApiAnnotations : AnnComma missing in TupleSection
-------------------------------------+-------------------------------------
              Reporter:  alanz       |             Owner:  alanz
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:  7.10.2
             Component:  Compiler    |           Version:  7.10.1
  (Parser)                           |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  None/Unknown
  ApiAnnotations                     |        Blocked By:
          Architecture:              |   Related Tickets:
  Unknown/Multiple                   |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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 For the following code

 {{{#!hs
 {-# LANGUAGE TupleSections #-}

 foo = do
   liftIO $ atomicModifyIORef ciTokens ((,()) . f)
 }}}

 the annotation is missing for the comma.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10280>
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