Wed Nov 22 05:28:44 PST 2006 [EMAIL PROTECTED]
* Retain simplifications of implication constraints
When simplifying an implication constraint (reduceImplication), if we make
progress, make a new implication constraint for the result. If we don't
do this, we get a constraint that can be simplified in a unique way,
and that in turn confuses reportNoInstance
M ./compiler/typecheck/TcRnTypes.lhs -1 +2
M ./compiler/typecheck/TcSimplify.lhs -51 +62
_______________________________________________
Cvs-ghc mailing list
[EMAIL PROTECTED]
http://www.haskell.org/mailman/listinfo/cvs-ghc