Function hook

libs/error-stack/tests/test_debug.rs:436–446

()

    #[test]
    fn hook() {
        let _guard = prepare(false);

        let report = create_report().attach_opaque(2_u32);

        Report::install_debug_hook::<u32>(|_, context| {
            context.push_body("unsigned 32bit integer");
        });

        assert_snapshot!(format!("{report:?}"));
    }

    #[test]
    fn hook_context() {