Mon Nov 1 09:46:30 PDT 2010 [email protected]
* Improve error messages
In particular, instead of
Cannot match 'a' with 'b'
we get
Could not deduce (a~b) from context (F a ~ b)
or whatever
M ./compiler/typecheck/TcErrors.lhs -19 +27
View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20101101164630-1287e-28f8b473470d8b5f8e2b16d8e59aba9a81d4e7cd.gz
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