GHCi from tonight: problem with printing contexts

[Simon Marlow]

> I am not sure whether the current HEAD's interactive mode is
> supposed to be working again...
>=20
> Anyway, it doesn't print contexts right:
>=20
>   Prelude> :t (+)
>   Integer -> Integer -> Integer
>   Prelude> :t enumFromTo
>=20
>   <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 []
>=20
> This is the HEAD from tonight.

This should be fixed now.

Cheers,
	Simon