Rollup merge of rust-lang#155586 - oli-obk:assert-ignored-feed, r=petrochenkov

Ensure we don't feed owners from ast lowering if we ever make that query tracked

follow-up to rust-lang#153489

I don't expect this to ever really be an issue, but better safe than sorry 😆

Author: jhpratt

compiler/rustc_middle/src/ty/context.rs

@@ -700,6 +700,7 @@ impl<'tcx> TyCtxt<'tcx> {
 
     /// Feeds the HIR delayed owner during AST -> HIR delayed lowering.
     pub fn feed_delayed_owner(self, key: LocalDefId, owner: MaybeOwner<'tcx>) {
+        self.dep_graph.assert_ignored();
         TyCtxtFeed { tcx: self, key }.delayed_owner(owner);
     }
 }