[webkit-dev] New xslt errors during run-webkit-tests

[Eric Seidel]

FYI, there are now additional error messages printed from libXSLT  
while running run-webkit-tests.

These were introduced by new "failure-case" layout tests which I  
added as part of:
http://bugzilla.opendarwin.org/show_bug.cgi?id=5875

They are caused by our current XSLT error reporting architecture  
which dumps errors to the console (instead of to the generated  
webpage) due to: http://bugzilla.opendarwin.org/show_bug.cgi?id=6040

If they get too annoying we can either turn off XSLT error reporting  
in debug builds... or fix 6040.

-eric