Move a table's rows, links and pins into internal/rows, and walk every path through one per-step function, so Fake refuses a level carrying a repeat

shipped_test.go

@@ -69,8 +69,8 @@ func shippedIndexSource(whole *Generator) ([]byte, error) {
 	b.WriteString("// Code generated by go generate. DO NOT EDIT.\n\npackage fejkdata\n\nvar shippedIndex = map[string]shippedEntry{\n")
 	for _, s := range categorySites(&whole.root) {
 		fmt.Fprintf(&b, "%q: {", s.path)
-		if t, isTable := s.n.(*table); isTable && t.parentIndex >= 0 {
-			fmt.Fprintf(&b, "parent: %q, ", t.header[t.parentIndex])
+		if t, isTable := s.n.(*table); isTable && t.rows.Options().Parent != "" {
+			fmt.Fprintf(&b, "parent: %q, ", t.rows.Options().Parent)
 		}
 		ps := paths(s.n)
 		sort.Strings(ps)