This demonstrates that under 64 bit Windows exceptions may not propagate
through the kernel code and throwing from inside wxYield() results in either
an immediate abort, even if the code calling wxYield() tries to handle the
exception, or, even more surprisingly, is just completely ignored.
See http://blog.paulbetts.org/index.php/2010/07/20/the-case-of-the-disappearing-onload-exception-user-mode-callback-exceptions-in-x64/
for more information.
Moreover, independently of Windows weirdness, throwing from wxYield() also
results in a difficult to debug crash when using wxGTK because C++ exceptions
can't propagate through C GTK+ code in this case.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77465 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775