[GHC] #9900: Support pattern synonyms in GHCi

[GHC]

#9900: Support pattern synonyms in GHCi
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              Reporter:  cactus      |            Owner:  cactus
                  Type:  bug         |           Status:  patch
              Priority:  normal      |        Milestone:  7.10.1
             Component:  GHCi        |          Version:  7.8.3
            Resolution:              |         Keywords:  PatternSynonyms
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  GHC         |       Blocked By:  9915
  rejects valid program              |  Related Tickets:  #8749, #7253
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by cactus):

 * status:  new => patch
 * type:  feature request => bug
 * milestone:  7.12.1 => 7.10.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9900#comment:11>
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