refactor(util): make 'util/test.h' the first include

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

src/tests/util/buffer.cpp

@@ -5,8 +5,8 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Author: Leonardo de Moura
 */
 #include <vector>
-#include "util/buffer.h"
 #include "util/test.h"
+#include "util/buffer.h"
 using namespace lean;
 
 template<typename C>

src/tests/util/list.cpp

@@ -5,9 +5,9 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Author: Leonardo de Moura
 */
 #include <vector>
+#include "util/test.h"
 #include "util/list.h"
 #include "util/list_fn.h"
-#include "util/test.h"
 using namespace lean;
 
 static void tst1() {

src/tests/util/scoped_map.cpp

@@ -4,8 +4,8 @@ Released under Apache 2.0 license as described in the file LICENSE.
 
 Author: Leonardo de Moura
 */
-#include "util/scoped_map.h"
 #include "util/test.h"
+#include "util/scoped_map.h"
 using namespace lean;
 
 static void tst1() {

src/tests/util/scoped_set.cpp

@@ -4,8 +4,8 @@ Released under Apache 2.0 license as described in the file LICENSE.
 
 Author: Leonardo de Moura
 */
-#include "util/scoped_set.h"
 #include "util/test.h"
+#include "util/scoped_set.h"
 using namespace lean;
 
 static void tst1() {

src/tests/util/sexpr.cpp

@@ -6,8 +6,8 @@ Author: Leonardo de Moura
 */
 #include <sstream>
 #include <string>
-#include "util/name.h"
 #include "util/test.h"
+#include "util/name.h"
 #include "util/numerics/mpq.h"
 #include "util/sexpr/sexpr.h"
 #include "util/sexpr/sexpr_fn.h"