[libc++] Alphabetize and include-what-you-use. NFCI.
Differential Revision: https://reviews.llvm.org/D102781
NOKEYCHECK=True
GitOrigin-RevId: bfbd73f87d7b2c1140b43192cea6b7fbbfc35cd0
diff --git a/include/__tree b/include/__tree
index 70f3a27..b599a04 100644
--- a/include/__tree
+++ b/include/__tree
@@ -11,10 +11,10 @@
#define _LIBCPP___TREE
#include <__config>
+#include <algorithm>
#include <iterator>
#include <memory>
#include <stdexcept>
-#include <algorithm>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header