Add back missing import

diff --git a/src/librustc_traits/lowering/environment.rs b/src/librustc_traits/lowering/environment.rs
index eb47892ea4103d281e632dcf2b04e71b8b42105f..3570cb102460002a3596fa49179a14266fd4082b 100644 (file)
--- a/src/librustc_traits/lowering/environment.rs
+++ b/src/librustc_traits/lowering/environment.rs
@@ -164,7 +164,7 @@ fn visit_clause(&mut self, clause: Clause<'tcx>) {
     tcx: TyCtxt<'a, 'tcx, 'tcx>,
     def_id: DefId
 ) -> Environment<'tcx> {
-    use super::IntoFromEnvGoal;
+    use super::{Lower, IntoFromEnvGoal};
     use rustc::hir::{Node, TraitItemKind, ImplItemKind, ItemKind, ForeignItemKind};
 
     debug!("environment(def_id = {:?})", def_id);