Add missing types to type-graph, fix #2976
Add missing types to type-graph, fix #2976

tbrowder/doc,MasterDuke17/doc,tbrowder/doc,MasterDuke17/doc,perl6/doc,tbrowder/doc,perl6/doc,MasterDuke17/doc,perl6/doc,tbrowder/doc,perl6/doc,MasterDuke17/doc,perl6/doc