[GHC] #1155: ghci -debug generates slightly odd message

[GHC]

#1155: ghci -debug generates slightly odd message
----------------------------------------------+-----------------------------
 Reporter:  Stefan O'Rear <stefanor at cox.net>  |          Owner:             
     Type:  bug                               |         Status:  new        
 Priority:  lowest                            |      Milestone:  6.6.2      
Component:  GHCi                              |        Version:  6.6        
 Severity:  trivial                           |     Resolution:             
 Keywords:                                    |     Difficulty:  Easy (1 hr)
 Testcase:                                    |   Architecture:  Unknown    
       Os:  Unknown                           |  
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Changes (by igloo):

  * milestone:  => 6.6.2

Comment:

 This comes from:
 {{{
 when (notNull (filter (/= WayThreaded) (wayNames dflags))
       && isInterpretiveMode cli_mode) $
    do throwDyn (UsageError
                 "--interactive can't be used with -prof, -ticky, or
 -unreg.")
 }}}
 We should really have a function to print out the flag of a way name so we
 can just give the flag we have a problem with, but
 I can't see how `WayUser_*` come into existence. Should they be removed?
 Should they
 be refactored into `WayUser Letter` or `WayUser Char`?

 There's also the problem that -smp and -threaded both result in the same
 flag. I guess we could make the string be "-threaded (or -smp)".

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1155>
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