docs: String cleanName(final ScriptNode n)
      {
        String result = "";
        if (n instanceof FunctionNode) {
          Name name = ((FunctionNode) n).getFunctionName();
          if (name == null) {
            result = "anonymous";
          } else {
            result = name.getIdentifier();
          }
        } else {
          result = "script";
        }
        return result;
      }