2 Checks for expressions where a character literal is cast
3 to `u8` and suggests using a byte literal instead.
6 In general, casting values to smaller types is
7 error-prone and should be avoided where possible. In the particular case of
8 converting a character literal to u8, it is easy to avoid by just using a
9 byte literal instead. As an added bonus, `b'a'` is even slightly shorter
17 A better version, using the byte literal: