ART: Include cleanup

Let clang-format reorder the header includes.

Derived with:

* .clang-format:
 BasedOnStyle: Google
 IncludeIsMainRegex: '(_test|-inl)?$'

* Steps:
 find . -name '*.cc' -o -name '*.h' | xargs sed -i.bak -e 's/^#include/ #include/' ; git commit -a -m 'ART: Include cleanup'
 git-clang-format -style=file HEAD^
 manual inspection
 git commit -a --amend

Test: mmma art
Change-Id: Ia963a8ce3ce5f96b5e78acd587e26908c7a70d02
diff --git a/compiler/utils/swap_space.h b/compiler/utils/swap_space.h
index 0ff9fc6..08e243b 100644
--- a/compiler/utils/swap_space.h
+++ b/compiler/utils/swap_space.h
@@ -17,12 +17,12 @@
 #ifndef ART_COMPILER_UTILS_SWAP_SPACE_H_
 #define ART_COMPILER_UTILS_SWAP_SPACE_H_
 
+#include <stddef.h>
+#include <stdint.h>
 #include <cstdlib>
 #include <list>
-#include <vector>
 #include <set>
-#include <stdint.h>
-#include <stddef.h>
+#include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"