After the recent changes on the head, I get a strange error message for
the attached code:
Foo.hs:24:
Overlapping instances for X (Foo c)
arising from use of `x' at Foo.hs:24
Matching instances: Foo.hs:17: instance (X a) => X (Foo a)
In the definition of `z': z = x
In the definition for method `z'
In the instance declaration for `Z Foo'
Foo.hs
Description: Binary data
Hugs, GHC 6.0.1, and the GHC HEAD from a few days ago all compile the
code.
The code was actually an attempt to find a test case for another
problem I had while compiling HOpenGL; there, I get a "Could not deduce
... from the context ..." error message.
Cheers,
Wolfgang
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