Improve composition on koral compilation

Change-Id: Iadb072c2b7f83656a1afcf89e2fb49a11c7026ca
diff --git a/lib/Krawfish/Compile/Segment/Enrich/SortCriterion.pm b/lib/Krawfish/Compile/Segment/Enrich/SortCriterion.pm
index b388f0e..7f2e08d 100644
--- a/lib/Krawfish/Compile/Segment/Enrich/SortCriterion.pm
+++ b/lib/Krawfish/Compile/Segment/Enrich/SortCriterion.pm
@@ -1,7 +1,9 @@
 package Krawfish::Compile::Segment::Enrich::SortCriterion;
-use parent 'Krawfish::Compile';
 use warnings;
 use strict;
+use Role::Tiny;
+
+with 'Krawfish::Compile';
 
 # Enrich an item with sort criteria.
 # This is necessary to sort items beyond the segment.