Not currently. But it's a development tool, and not a part of OS X, so it wouldn't be listed here anyway. For instance, this page has Clang, GCC, Git, etc.: http://opensource.apple.com/release/developer-tools-51/

im pretty sure the official comment was 'we don't know yet, but we'd like it to be if it makes sense'

Some claim it will be, though there's been nothing official from Apple yet.