First brush with testing __gxx_personality_v0 reveals there is still a long...

First brush with testing __gxx_personality_v0 reveals there is still a long way to go.  But my understanding of what it is supposed to do continues to improve.  I am currently contemplating whether I need to implement typeinfo before completing __gxx_personality_v0 in order to get matching catch handlers correct.

llvm-svn: 147761