Sort includes in libsolidity/ast

libsolidity/ast/Types.h

@@ -22,23 +22,23 @@
 
 #pragma once
 
-#include <liblangutil/Exceptions.h>
-#include <libsolidity/ast/ASTForward.h>
 #include <libsolidity/ast/ASTEnums.h>
+#include <libsolidity/ast/ASTForward.h>
 #include <libsolidity/parsing/Token.h>
+#include <liblangutil/Exceptions.h>
 
 #include <libdevcore/Common.h>
 #include <libdevcore/CommonIO.h>
 #include <libdevcore/Result.h>
 
+#include <boost/optional.hpp>
 #include <boost/noncopyable.hpp>
 #include <boost/rational.hpp>
-#include <boost/optional.hpp>
 
-#include <memory>
-#include <string>
 #include <map>
+#include <memory>
 #include <set>
+#include <string>
 
 namespace dev
 {