Wed Jan 10 10:44:51 PST 2007 Manuel M T Chakravarty <chak at cse.unsw.edu.au>
* checkTauTvUpdate: take synonym families into account
M ./compiler/typecheck/TcType.lhs -2 +2
M ./compiler/typecheck/TcUnify.lhs -1 +12
M ./compiler/types/TyCon.lhs -2 +9