{"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
            let key = BindingKey::new(ident, ns);
            let impl_def_id = self.r.tcx.local_parent(local_def_id);
            self.r.impl_binding_keys.entry(impl_def_id).or_default().insert(key);