Use () for privacy.

compiler/rustc_save_analysis/src/lib.rs

@@ -1000,7 +1000,7 @@ pub fn process_crate<'l, 'tcx, H: SaveHandler>(
             // Privacy checking requires and is done after type checking; use a
             // fallback in case the access levels couldn't have been correctly computed.
             let access_levels = match tcx.sess.compile_status() {
-                Ok(..) => tcx.privacy_access_levels(LOCAL_CRATE),
+                Ok(..) => tcx.privacy_access_levels(()),
                 Err(..) => tcx.arena.alloc(AccessLevels::default()),
             };