[GHC] #10117: Change the scheme for reporting redundant imports

[GHC]

#10117: Change the scheme for reporting redundant imports
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.4
      Resolution:                    |             Keywords:  deprecate
                                     |  warning
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by thomie):

 A blogpost: http://www.yesodweb.com/blog/2016/05/are-unused-import-
 warnings-harmful

 And discussion:
 https://www.reddit.com/r/haskell/comments/4jvtmh/are_unused_import_warnings_harmful/

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10117#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler