let is_named = node.name().is_some();
let field_type = self.tcx.node_id_to_type(node.id);
let is_marker_field = match field_type.ty_to_def_id() {
- Some(def_id) => self.tcx.lang_items.items().any(|(_, item)| *item == Some(def_id)),
+ Some(def_id) => self.tcx.lang_items.items().iter().any(|item| *item == Some(def_id)),
_ => false
};
is_named