[GHC] #7727: Nonsense evaluation: sequence [] = []

[GHC]

#7727: Nonsense evaluation: sequence [] = []
---------------------------------+------------------------------------------
    Reporter:  drb226            |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Milestone:                  
   Component:  GHCi              |     Version:  7.6.2           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Changes (by igloo):

  * difficulty:  => Unknown
  * component:  Compiler => GHCi


Comment:

 It's doing this:
 {{{
 Prelude> sequence [] :: IO [()]
 []
 }}}

 We do document this
 (http://www.haskell.org/ghc/docs/7.6.1/html/users_guide/interactive-
 evaluation.html) but perhaps we should be clearer about precisely how
 statements are typechecked and executed at the GHCi prompt.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7727#comment:1>
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