remove bound_type_of query; make type_of return EarlyBinder; change type_of in metadata

compiler/rustc_ty_utils/src/instance.rs

@@ -52,7 +52,7 @@ fn inner_resolve_instance<'tcx>(
             tcx.normalize_erasing_regions(param_env, substs),
         )
     } else {
-        let ty = tcx.bound_type_of(def.def_id_for_type_of());
+        let ty = tcx.type_of(def.def_id_for_type_of());
         let item_type =
             tcx.subst_and_normalize_erasing_regions(substs, param_env, ty.skip_binder());