-/// Given a trait `trait_ref`, returns the number of vtable entries
-/// that come from `trait_ref`, excluding its supertraits. Used in
-/// computing the vtable base for an upcast trait of a trait object.
-pub fn count_own_vtable_entries<'tcx>(
- tcx: TyCtxt<'tcx>,
- trait_ref: ty::PolyTraitRef<'tcx>,
-) -> usize {
- tcx.own_existential_vtable_entries(trait_ref.def_id()).len()
-}
-