[libc++] Alphabetize and include-what-you-use. NFCI.

Differential Revision: https://reviews.llvm.org/D102781

NOKEYCHECK=True
GitOrigin-RevId: bfbd73f87d7b2c1140b43192cea6b7fbbfc35cd0
diff --git a/include/tuple b/include/tuple
index 0a131f3..58f72b1 100644
--- a/include/tuple
+++ b/include/tuple
@@ -150,11 +150,11 @@
 */
 
 #include <__config>
+#include <__functional_base>
 #include <__tuple>
 #include <compare>
 #include <cstddef>
 #include <type_traits>
-#include <__functional_base>
 #include <utility>
 #include <version>