Added some more symbols to the v2 rexport list.

llvm-svn: 149636
diff --git a/libcxx/lib/libc++abi2.exp b/libcxx/lib/libc++abi2.exp
index 49e6108..471c686 100644
--- a/libcxx/lib/libc++abi2.exp
+++ b/libcxx/lib/libc++abi2.exp
@@ -197,3 +197,7 @@
 __Znwm
 __ZnwmRKSt9nothrow_t
 __ZnamRKSt9nothrow_t
+__ZTISt10bad_typeid
+__ZTISt8bad_cast
+___cxa_bad_typeid
+___cxa_bad_cast