Fix issues with UBSAN test configuration.

On Apple the test feature 'sanitizer-new-delete' was incorrectly
getting added to the LIT feature set, which mistakenly caused tests
to be disabled when using UBSAN (the feature is only needed with ASAN/MSAN/TSAN).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@307518 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed