Do not store visibility in *ItemRef.

compiler/rustc_ast_lowering/src/path.rs

@@ -99,7 +99,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                         num_lifetimes,
                         parenthesized_generic_args,
                         itctx.reborrow(),
-                        None,
                     )
                 },
             )),
@@ -147,7 +146,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                 0,
                 ParenthesizedGenericArgs::Err,
                 itctx.reborrow(),
-                None,
             ));
             let qpath = hir::QPath::TypeRelative(ty, hir_segment);
 
@@ -178,7 +176,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         res: Res,
         p: &Path,
         param_mode: ParamMode,
-        explicit_owner: Option<NodeId>,
     ) -> &'hir hir::Path<'hir> {
         self.arena.alloc(hir::Path {
             res,
@@ -190,7 +187,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                     0,
                     ParenthesizedGenericArgs::Err,
                     ImplTraitContext::disallowed(),
-                    explicit_owner,
                 )
             })),
             span: self.lower_span(p.span),
@@ -205,7 +201,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
     ) -> &'hir hir::Path<'hir> {
         let res = self.expect_full_res(id);
         let res = self.lower_res(res);
-        self.lower_path_extra(res, p, param_mode, None)
+        self.lower_path_extra(res, p, param_mode)
     }
 
     crate fn lower_path_segment(
@@ -216,7 +212,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         expected_lifetimes: usize,
         parenthesized_generic_args: ParenthesizedGenericArgs,
         itctx: ImplTraitContext<'_, 'hir>,
-        explicit_owner: Option<NodeId>,
     ) -> hir::PathSegment<'hir> {
         debug!(
             "path_span: {:?}, lower_path_segment(segment: {:?}, expected_lifetimes: {:?})",
@@ -354,11 +349,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         }
 
         let res = self.expect_full_res(segment.id);
-        let id = if let Some(owner) = explicit_owner {
-            self.lower_node_id_with_owner(segment.id, owner)
-        } else {
-            self.lower_node_id(segment.id)
-        };
+        let id = self.lower_node_id(segment.id);
         debug!(
             "lower_path_segment: ident={:?} original-id={:?} new-id={:?}",
             segment.ident, segment.id, id,