Function parse_to_uimm128

cranelift/codegen/src/ir/constant.rs:450–455

(from: &str)

    #[test]
    fn check_constant_data_endianness_as_uimm128() {
        fn parse_to_uimm128(from: &str) -> Vec<u8> {
            from.parse::<ConstantData>()
                .unwrap()
                .expand_to(16)
                .into_vec()
        }

        assert_eq!(
            parse_to_uimm128("0x42"),