[PATCH] D17951: Implement is_always_lock_free

[Eric Fiselier via cfe-commits]

EricWF added a comment.

@jfb: Actually I changed my mind about guarding the new tests. Can you move the new tests (other than the missing additions) to a new test file? Then add `// UNSUPPORTED: c++98, c++03, c++11, c++14` to the top of it?


http://reviews.llvm.org/D17951