[GHC] #11751: Parse error with case in where

[GHC]

#11751: Parse error with case in where
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           Reporter:  samuela           |             Owner:
               Type:  bug               |            Status:  new
           Priority:  normal            |         Milestone:
          Component:  Compiler          |           Version:  7.10.2
           Keywords:                    |  Operating System:  MacOS X
       Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
          Test Case:                    |        Blocked By:
           Blocking:                    |   Related Tickets:
Differential Rev(s):                    |         Wiki Page:
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 The following code produces a peculiar parse error:

 {{{#!hs
 subtype = 0
   where (x, y) = case (1, 2) of
     (a, b) -> (3, 4)
 }}}

 `parse_error.hs:3:5: parse error on input ‘(’`

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11751>
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