Test higher-order SIDE_HIERARCHIC on Hexes

Author: roystgnr

tests/fe/fe_side_test.C

@@ -582,8 +582,8 @@ INSTANTIATE_FESIDETEST(FOURTH, SIDE_HIERARCHIC, TRI7);
 INSTANTIATE_FESIDETEST(CONSTANT, SIDE_HIERARCHIC, HEX27);
 INSTANTIATE_FESIDETEST(FIRST, SIDE_HIERARCHIC, HEX27);
 INSTANTIATE_FESIDETEST(SECOND, SIDE_HIERARCHIC, HEX27);
-//INSTANTIATE_FESIDETEST(THIRD, SIDE_HIERARCHIC, HEX27);
-//INSTANTIATE_FESIDETEST(FOURTH, SIDE_HIERARCHIC, HEX27);
+INSTANTIATE_FESIDETEST(THIRD, SIDE_HIERARCHIC, HEX27);
+INSTANTIATE_FESIDETEST(FOURTH, SIDE_HIERARCHIC, HEX27);
 //
 INSTANTIATE_FESIDETEST(CONSTANT, SIDE_HIERARCHIC, TET14);
 INSTANTIATE_FESIDETEST(FIRST, SIDE_HIERARCHIC, TET14);