atomic_deprecated(3) on macOS

The text 5136e6af8578, as macOS 10.12.6, macOS 10.12.5, macOS 10.12.4, macOS 10.12.3, macOS 10.12.2, macOS 10.12.1, macOS 10.12 shipped it.

deprecated atomic add, increment, decrement, or, and, xor, compare and swap, test and set, test and clear, and memory barrier