[GHC] #3384: Add HsSyn prettyprinter tests

[GHC]

#3384: Add HsSyn prettyprinter tests
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        Reporter:  igloo             |                   Owner:
            Type:  task              |                  Status:  new
        Priority:  normal            |               Milestone:  ⊥
       Component:  Test Suite        |                 Version:
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Changes (by thomie):

 * cc: alanz (added)
 * owner:  kseo =>


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3384#comment:4>
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