if strings.HasPrefix(c.Text, "// Deprecated:") {
					return true
				}
			}
		}
		return false
	}

	w.deprecated = make(map[token.Pos]bool)
	mark := func(id *ast.Ident) {
		if id != nil {
			w.deprecated[id.Pos()] = true
		}
	}
	for _, file := range w.current.Files {
		ast.Inspect(file, func(n ast.Node) bool {
			switch n := n.(type) {
			case *ast.File: