[GHC] #8959: GHCi should honour UnicodeSyntax

[GHC]

#8959: GHCi should honour UnicodeSyntax
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        Reporter:  Fuuzetsu          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  low               |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.6.3
      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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Comment (by shachaf):

 I have the same problem with this change as int-e -- the extension
 previously affected only input and now silently started to affect output
 too. I've turned it off in my `.ghci` as a result. I also think that a
 separate output flag is the right approach -- compare `-XExplicitForAll`
 vs. `-fprint-explicit-foralls`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8959#comment:15>
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