[clang] [libcxx] Elide suspension points via [[clang::coro_await_suspend_destroy]] (PR #152623)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

git-clang-format uses the "--lines" option to clang-format restrict formatting updates.  If that isn't working correctly, please file a bug.  You can ignore the bot after that.

https://github.com/llvm/llvm-project/pull/152623