for (i = 0; psi_plist_get(exp->vars, i, &free_var); ++i) {
if (!psi_impl_get_decl_arg(scope->impl, free_var)) {
data->error(data, free_var->token, PSI_WARNING,
"Unknown variable '%s' of `free` statement"
" of implementation '%s'",
for (i = 0; psi_plist_get(exp->vars, i, &free_var); ++i) {
if (!psi_impl_get_decl_arg(scope->impl, free_var)) {
data->error(data, free_var->token, PSI_WARNING,
"Unknown variable '%s' of `free` statement"
" of implementation '%s'",