[Hugs-bugs] nullary classes

[Claus Reinke]

just noticed that hugs accepts those brand-new 
zero-parameter classes (take that, ghc!-):

   class A where f :: a -> a
   
   Main> :t f
   f :: A => a -> a
might be an interesting feature, so I don't request 
to remove it, but thought I'd mention it here.

cheers,
claus
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