[GHC] #10576: REPL returns list of all imported names when operator completion requested

[GHC]

#10576: REPL returns list of all imported names when operator completion requested
-------------------------------------+-------------------------------------
        Reporter:  Geraldus          |                   Owner:  thomie
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  GHCi              |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |  completions complete command
 Type of failure:  Incorrect result  |  operator
  at runtime                         |            Architecture:
      Blocked By:                    |  Unknown/Multiple
 Related Tickets:  #9996             |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by Geraldus):

 My little investigation lead me to `completeQuotedWord` function, but I
 can't follow any further now because I can't find where it comes from:

 `completeCmd` [1] ->
 -> [2]
 -> `ghciCompleteWord` [3]
 -> [4]
 -> `completeExpression` [5]

 {{{
 completeExpression = completeQuotedWord (Just '\\') "\"" listFiles
                         completeIdentifier
 }}}


 [1]:https://github.com/ghc/ghc/blob/d20031d4c88b256cdae264cb05d9d850e973d956/ghc/InteractiveUI.hs#L2481
 [2]:https://github.com/ghc/ghc/blob/d20031d4c88b256cdae264cb05d9d850e973d956/ghc/InteractiveUI.hs#L2484
 [3]:https://github.com/ghc/ghc/blob/d20031d4c88b256cdae264cb05d9d850e973d956/ghc/InteractiveUI.hs#L2528
 [4]:https://github.com/ghc/ghc/blob/d20031d4c88b256cdae264cb05d9d850e973d956/ghc/InteractiveUI.hs#L2535
 [5]:https://github.com/ghc/ghc/blob/d20031d4c88b256cdae264cb05d9d850e973d956/ghc/InteractiveUI.hs#L2639

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10576#comment:3>
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