Method increment

regex/regex-syntax/src/hir/interval.rs:466–466

(self)

    fn max_value() -> Self { u8::MAX }
    fn as_u32(self) -> u32 { self as u32 }
    fn increment(self) -> Self { self.checked_add(1).unwrap() }
    fn decrement(self) -> Self { self.checked_sub(1).unwrap() }
}