Substituted std::get_terminate() for direct access to the handler function pointer (which is now a static in cxa_handlers.cpp).  This has the advantage of going through the atomic API and so is less likely to cause a data race.  Ditto for unexpected.
Substituted std::get_terminate() for direct access to the handler function pointer (which is now a static in cxa_handlers.cpp).  This has the advantage of going through the atomic API and so is less likely to cause a data race.  Ditto for unexpected.

git-svn-id: 6a9f6578bdee8d959f0ed58970538b4ab6004734@145951 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxxabi,llvm-mirror/libcxxabi,llvm-mirror/libcxxabi,llvm-mirror/libcxxabi,llvm-mirror/libcxxabi