Fix aligned allocation availability XFAILs after D56445.

D56445 bumped the minimum Mac OS X version required for aligned
allocation from 10.13 to 10.14. This caused libc++ tests depending
on the old value to break.

This patch updates the XFAILs for those tests to include 10.13.

llvm-svn: 351625
GitOrigin-RevId: a32dd04238421e96768b312763241eb44e1333c4
8 files changed