let call_site = DUMMY_SP.with_call_site_ctxt(expn_id);
let ecfg = ExpansionConfig::default("std_lib_injection".to_string());
- let cx = ExtCtxt::new(sess, ecfg, resolver);
+ let cx = ExtCtxt::new(sess, ecfg, resolver, None);
// .rev() to preserve ordering above in combination with insert(0, ...)
for &name in names.iter().rev() {