[GHC] #8749: Pattern synonyms crash GHCi

[GHC]

#8749: Pattern synonyms crash GHCi
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        Reporter:  monoidal          |            Owner:
            Type:  bug               |           Status:  merge
        Priority:  normal            |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.8.1-rc1
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:  8757
        Blocking:                    |  Related Tickets:
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Changes (by monoidal):

 * version:  7.7 => 7.8.1-rc1
 * milestone:   => 7.8.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8749#comment:5>
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