Add cpp_macro_definition

src/cpp_preprocessor.cpp

@@ -0,0 +1,14 @@
+// Copyright (C) 2017 Jonathan Müller <jonathanmueller.dev@gmail.com>
+// This file is subject to the license terms in the LICENSE file
+// found in the top-level directory of this distribution.
+
+#include <cppast/cpp_preprocessor.hpp>
+
+#include <cppast/cpp_entity_kind.hpp>
+
+using namespace cppast;
+
+cpp_entity_kind cpp_macro_definition::do_get_entity_kind() const noexcept
+{
+    return cpp_entity_kind::macro_definition_t;
+}