+\ ------------------------------------------------------------------------------
+TESTING REQUIRED REQUIRE INCLUDED
+\ Tests taken from Forth 2012 RfD
+
+T{ 0 S" t_required-helper1.fth" REQUIRED
+ REQUIRE t_required-helper1.fth
+ INCLUDE t_required-helper1.fth
+ -> 2 }T
+
+T{ 0 INCLUDE t_required-helper2.fth
+ S" t_required-helper2.fth" REQUIRED
+ REQUIRE t_required-helper2.fth
+ S" t_required-helper2.fth" INCLUDED
+ -> 2 }T
+