[GHC] #1896: Keep old bindings until :load succeeds

[GHC]

#1896: Keep old bindings until :load succeeds
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    Reporter:  tibbe             |       Owner:                  
        Type:  feature request   |      Status:  patch           
    Priority:  low               |   Milestone:  7.6.2           
   Component:  GHCi              |     Version:  6.8.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Comment(by morabbin):

 Since some/most of the use-cases are covered, perhaps someone who cares
 about the remainder ought to make a new ticket?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1896#comment:21>
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