[GHC] #13064: Incorrect redudant imports warning

[GHC]

#13064: Incorrect redudant imports warning
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        Reporter:  phadej            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:  8.8.1
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15393            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by ekmett):

 I'm leaning on the side of applying this change and my reasoning pretty
 closely follows Ryan's. Between the ability to explicitly qualify use in
 the presence of a conflict and the fact that the common "open" import of
 all things in a module still work out of the box, I'm pretty happy to say
 we should fix the bug and change programming styles slightly.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13064#comment:30>
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