simonpj 2005/02/25 06:15:59 PST
Modified files:
ghc/compiler/typecheck TcSimplify.lhs
Log:
-----------------------------------------
Improve ambiguity reporting in TcSimplify
-----------------------------------------
Merge to STABLE
The test for ambiguity in tcSimplifyTop caused us to say thing like
No instance for (Show c)
which is a bit confusing -- and in fact exposed a separate buglet in
the fix-reporting code.
This commit deals with the origial problem. tcfail133 tests it.
Revision Changes Path
1.151 +4 -10 fptools/ghc/compiler/typecheck/TcSimplify.lhs
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