[GHC] #10312: ApiAnnotations: misplaced AnnComma for squals production

[GHC]

#10312: ApiAnnotations: misplaced AnnComma for squals production
-------------------------------------+-------------------------------------
              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:              |
-------------------------------------+-------------------------------------
 The parser production for `squals` has

 {{{
     : squals ',' transformqual
              {% addAnnotation (gl $ last $ unLoc $1) AnnComma (gl $2) >>
                 ams (sLL $1 $> ()) (fst $ unLoc $3) >>
                 return (sLL $1 $> [sLL $1 $> ((snd $ unLoc $3) (reverse
 (unLoc $1)))]) }
 }}}

 This attaches the comma to the wrong part of the `squals`, as it is
 generated in reverse order.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10312>
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