Merge pull request #124 from Flast/feature/ticket-11157-remove-BOOST_PP_IS_EMPTY

Remove use of BOOST_PP_IS_EMPTY.

test/sequence/adapt_assoc_adt.cpp

@@ -65,7 +65,7 @@ BOOST_FUSION_ADAPT_ASSOC_ADT(
     ns::point,
     (int, int, obj.get_x(), obj.set_x(val), ns::x_member)
     (int, int, obj.get_y(), obj.set_y(val), ns::y_member)
-    (BOOST_FUSION_ADAPT_AUTO, BOOST_FUSION_ADAPT_AUTO, obj.get_z(), obj.set_z(val), ns::z_member)
+    (auto, auto, obj.get_z(), obj.set_z(val), ns::z_member)
 )
 
 #endif