[GHC] #8927: Multiple case match at once

[GHC]

#8927: Multiple case match at once
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        Reporter:  vxanica           |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.1-rc2
  (Parser)                           |         Keywords:  case, multiple
      Resolution:                    |     Architecture:  Unknown/Multiple
Operating System:  Unknown/Multiple  |       Difficulty:  Easy (less than 1
 Type of failure:  None/Unknown      |  hour)
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by hvr):

 Replying to [ticket:8927 vxanica]:
 > {{{#!haskell
 > case x of
 >     1 | 2 | 3 -> "123"
 >     4 | 5 | 6 -> "456"
 > }}}

 btw, this concrete syntax would collide with Haskell2010's
 [http://www.haskell.org/haskellwiki/Pattern_guard Pattern Guards]

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8927#comment:3>
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