Louis Dionne c49a13a45a [libc++] Fix atomic test for _BitInt
In 6c75ab5f66b4, Clang deprecated _ExtInt in favor of _BitInt, which
made this test fail. This patch disables the test on older compilers
and uses the new _BitInt type instead.

Differential Revision: https://reviews.llvm.org/D115194
2021-12-07 07:30:09 -05:00
..