[libc++][test] Add missing <concepts> in is_always_lock_free test (#105966)

StephanTLavavej · web-flow · commit bc695f522743 · 2024-08-26T11:49:47.000-04:00
That test was using std::same_as without including &lt;concepts&gt;.
diff --git a/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp b/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <atomic>
 #include <cassert>
+#include <concepts>
 #include <cstddef>
 
 #include "test_macros.h"
