go/types.typeWriter.seen (field)

4 uses

	go/types (current package)
		typestring.go#L78: 	seen    map[Type]bool
		typestring.go#L120: 	if w.seen[typ] {
		typestring.go#L124: 	w.seen[typ] = true
		typestring.go#L125: 	defer delete(w.seen, typ)