[GHC] #2865: Add more tab completions in GHCi for :set and :show

[GHC]

#2865: Add more tab completions in GHCi for :set and :show
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 Reporter:  salty-horse       |          Owner:                  
     Type:  feature request   |         Status:  new             
 Priority:  normal            |      Milestone:                  
Component:  GHCi              |        Version:  6.11            
 Severity:  trivial           |     Resolution:                  
 Keywords:                    |       Testcase:                  
       Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
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Changes (by salty-horse):

  * summary:  Add more autocompletions in GHCi for :set and :show => Add
              more tab completions in GHCi for :set and :show

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2865#comment:1>
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