[GHC] #9967: Pattern synonym type signature documentation out of date

[GHC]

#9967: Pattern synonym type signature documentation out of date
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              Reporter:  goldfire    |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:  7.10.1
             Component:              |           Version:  7.10.1-rc1
  Documentation                      |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  None/Unknown
          Architecture:              |        Blocked By:
  Unknown/Multiple                   |   Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
 Section 7.3.9.3 of the 7.10.1 RC1 user's guide uses the old pattern
 synonym type syntax for `ExNumPat`. I'd fix it myself, but I'm not 100%
 sure I'd do it correctly.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9967>
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