[GHC] #12139: Add TUI (text-based user interface) for GHCi

[GHC]

#12139: Add TUI (text-based user interface) for GHCi
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        Reporter:  siddhanathan      |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:
       Component:  GHCi              |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by thomie):

 > Ideally we'd just provide an API to the users and GHCi would be an app
 distributed separately.

 See https://github.com/commercialhaskell/intero.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12139#comment:2>
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