[2/4] msxml3/saxreader: Add a helper to check for error handler being set

[Nikolay Sivov]

Add a helper to check for error handler being set

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0002-Add-a-helper-to-check-for-error-handler-being-set.patch
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20101029/be027640/attachment.txt>