Modularize mp_from_sequence_3

Author: anarthal

test/mp_from_sequence_3.cpp

@@ -2,9 +2,17 @@
 // Distributed under the Boost Software License, Version 1.0.
 // https://www.boost.org/LICENSE_1_0.txt
 
+#ifdef BOOST_USE_MODULES
+#include <boost/core/lightweight_test_trait_macros.hpp>
+import std;
+import boost.core;
+import boost.mp11;
+#else
 #include <boost/mp11/algorithm.hpp>
 #include <boost/core/lightweight_test_trait.hpp>
 #include <type_traits>
+#endif
+
 
 template<class T, T... I> struct S;