[Hugs] #70: Uninformative error in do binding

[Hugs]

#70: Uninformative error in do binding
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 Reporter:  neil    |       Owner:  nobody
     Type:  defect  |      Status:  new   
 Priority:  major   |   Milestone:        
Component:  hugs    |     Version:  200609
 Keywords:          |  
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Given the program:

 {{{
 main = do
     [] <- return "test"
     print "test"

 > main
 Program error: user error (match fails)
 }}}

 It would be nice if the message at least mentioned "do" somewhere. The
 only way of figuring out what going wrong in a big program is to flip to
 GHC.

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Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/70>
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