fix computation of memsize for node lists

Author: froydnj

templates/src/node.c.erb

@@ -102,6 +102,10 @@ yp_node_memsize_node(yp_node_t *node, yp_memsize_t *memsize) {
         case <%= node.type %>: {
             yp_<%= node.human %>_t *cast = (yp_<%= node.human %>_t *) node;
             memsize->memsize += sizeof(*cast);
+            <%- if node.fields.any? { |f| f.is_a?(YARP::NodeListField) } -%>
+            // Node lists will add in their own sizes below.
+            memsize->memsize -= sizeof(yp_node_list_t) * <%= node.fields.count { |f| f.is_a?(YARP::NodeListField) } %>;
+            <%- end -%>
             <%- node.fields.each do |field| -%>
             <%- case field -%>
             <%- when YARP::ConstantField, YARP::OptionalConstantField, YARP::UInt32Field, YARP::FlagsField, YARP::LocationField, YARP::OptionalLocationField -%>
@@ -114,7 +118,7 @@ yp_node_memsize_node(yp_node_t *node, yp_memsize_t *memsize) {
             <%- when YARP::StringField -%>
             memsize->memsize += yp_string_memsize(&cast-><%= field.name %>);
             <%- when YARP::NodeListField -%>
-            yp_node_list_memsize(&cast-><%= field.name %>, memsize);
+            memsize->memsize += yp_node_list_memsize(&cast-><%= field.name %>, memsize);
             <%- when YARP::ConstantListField -%>
             memsize->memsize += yp_constant_id_list_memsize(&cast-><%= field.name %>);
             <%- else -%>