libcxxabi PATCH: Fix for PR17223 - catching a base pointer when a derived null pointer was thrown

[Howard Hinnant]

On Feb 5, 2014, at 12:50 PM, Marshall Clow <mclow.lists at gmail.com> wrote:

> Turns out you have to treat NULL special.
> Added a couple tests.

This looks awesome!  I recommend a test throwing nullptr as well, just as a sanity check.  And I think, but am not sure, that http://llvm.org/bugs/show_bug.cgi?id=17221 might be a duplicate.  And http://llvm.org/bugs/show_bug.cgi?id=17222 is in the same neighborhood, but probably not a duplicate.

Thanks Marshall!

Howard