[GHC] #11189: bang pattern parsing inconsistency

[GHC]

#11189: bang pattern parsing inconsistency
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        Reporter:  osa1              |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.11
  (Parser)                           |
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #10732            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 I doubt this is hurting anyone much, but it'd be great to fix it.  Any
 volunteers?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11189#comment:3>
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