[GHC] #8431: ghci freezes in multiline when passed a closing paren

[GHC]

#8431: ghci freezes in multiline when passed a closing paren
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        Reporter:  errge       |            Owner:
            Type:  bug         |           Status:  patch
        Priority:  high        |        Milestone:  7.8.1
       Component:  GHCi        |          Version:  7.6.3
      Resolution:              |         Keywords:
Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple             |       Difficulty:  Easy (less than 1 hour)
 Type of failure:  Other       |       Blocked By:
       Test Case:              |  Related Tickets:
        Blocking:              |
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Comment (by Krzysztof Gogolewski <krz.gogolewski@?>):

 In [changeset:"c4c640ecc2478143c4a31fd0ed28c06af4bb7b8a/testsuite"]:
 {{{
 #!CommitTicketReference repository="testsuite"
 revision="c4c640ecc2478143c4a31fd0ed28c06af4bb7b8a"
 Test #8431
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8431#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler