pool_register (flip->pool, free, vars);
lex_match (lexer, T_SLASH);
if (lex_match_id (lexer, "NEWNAMES"))
{
lex_match (lexer, T_EQUALS);
pool_register (flip->pool, free, vars);
lex_match (lexer, T_SLASH);
if (lex_match_id (lexer, "NEWNAMES"))
{
lex_match (lexer, T_EQUALS);