change test case to verify unexpected() calls terminate - not is terminate

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103794 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
tree: a596fb0bea5b1117dc4b9d4dde6869e02b9cbbdc
  1. include/
  2. lib/
  3. src/
  4. test/
  5. test_results/
  6. www/
  7. LICENSE.TXT
  8. Makefile