Add some needed symbols in exception.cpp and eliminate dependence upon uncaught_exception() from cxa_vector.cpp.  libc++abi is very nearly a self-contained (though not complete) library now.

llvm-svn: 148866
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 7fdfd5d2695f537915cc1000044d97086a2d2115
2 files changed
tree: 41f00b596b4a78d26c5440cc7fd0d5b226ea07a7
  1. include/
  2. src/
  3. test/
  4. www/
  5. CREDITS.TXT
  6. LICENSE.TXT