{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"cx.create_vtable_debuginfo(ty,"}]}
    cx.create_vtable_debuginfo(ty, trait_ref, vtable);
    cx.apply_vcall_visibility_metadata(ty, trait_ref, vtable);
    cx.vtables().borrow_mut().insert((ty, trait_ref), vtable);