Make queries more explicit

compiler/rustc_trait_selection/src/traits/select/confirmation.rs

@@ -574,7 +574,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         // Check supertraits hold. This is so that their associated type bounds
         // will be checked in the code below.
         for super_trait in tcx
-            .super_predicates_of(trait_predicate.def_id())
+            .explicit_super_predicates_of(trait_predicate.def_id())
             .instantiate(tcx, trait_predicate.trait_ref.args)
             .predicates
             .into_iter()