[GHC] #9023: Error when using empty record update on binary pattern synonym

[GHC]

#9023: Error when using empty record update on binary pattern synonym
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        Reporter:  Iceland_jack                 |            Owner:  cactus
            Type:  bug                          |           Status:  merge
        Priority:  normal                       |        Milestone:  7.8.3
       Component:  Compiler                     |          Version:  7.8.2
      Resolution:                               |         Keywords:
Operating System:  Linux                        |     Architecture:  x86
 Type of failure:  None/Unknown                 |       Difficulty:
       Test Case:  patsyn/should_compile/T9023  |  Unknown
        Blocking:                               |       Blocked By:
                                                |  Related Tickets:
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Comment (by cactus):

 After fixing the conflicts, I've pushed a version on top of `ghc-7.8` as
 `wip/T9023`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9023#comment:11>
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