GHCi from tonight: problem with printing contexts
Fri, 2 Mar 2001 17:37:36 -0000
> I am not sure whether the current HEAD's interactive mode is
> supposed to be working again...
> Anyway, it doesn't print contexts right:
> Prelude> :t (+)
> Integer -> Integer -> Integer
> Prelude> :t enumFromTo
> <no file>:0:
> Ambiguous type variable(s) `a' in the constraint `Enum a'
> arising from use of `enumFromTo' at <no file>:0
> in the definition of function `__cmTypeOfExpr': enumFromTo
> ghc: panic! (the `impossible' happened, GHC version 4.11):
> cmTypeOfExpr 
> This is the HEAD from tonight.
This should be fixed now.