[project @ 2005-05-31 12:45:03 by simonmar]
Fix some reporting of errors in the GHC API: errors during the downsweep were thrown as exceptions; now they're reported via the (Messages->IO ()) callback in the same way as other errors. getModuleInfo no longer prints anything on stdout. It does ignore error messages and return Nothing, however - we should fix this and return the error messages at some point. The ErrMsg type can now be thrown as an exception. This can be a convenient alternative if collecting multiple error messages isn't required. We do this in the downsweep now.
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