TryFrom and FromStr

[clarfonthey]

Right now, it seems like a blanket TryFrom could be implemented for everything that implements FromStr:

impl<'a, T: FromStr> TryFrom<&'a str> for T {
    type Err = <T as FromStr>::Err;
    fn try_from(s: &'a s) -> Result<T, Self::Err> {
        T::from_str(s)
    }
}

This seems like something that should be reconciled. It'd be very confusing if anything implemented TryFrom<&'a str> and FromStr and didn't have the same implementation for both.

[clarfonthey]

Closing in favour of just adding a comment to rust-lang/rust#33417