[GHC] #1148: Bad warnings about unused imports that are in fact needed

[GHC]

#1148: Bad warnings about unused imports that are in fact needed
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 Reporter:  brianh                 |          Owner:         
     Type:  bug                    |         Status:  new    
 Priority:  lowest                 |      Milestone:  _|_    
Component:  Compiler               |        Version:  6.8.2  
 Severity:  trivial                |     Resolution:         
 Keywords:  warning unused import  |     Difficulty:  Unknown
 Testcase:                         |   Architecture:  x86    
       Os:  Windows                |  
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Comment (by simonmar):

 I like the current behaviour.  GHC used to have the former behaviour, and
 there were complaints that we didn't detect unused cycles.

 (I presume the original bug about reporting unused qualified names still
 stands, though).

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1148#comment:6>
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