Deriving fails with 'self lifetimes

[huonw]

#[deriving(Eq)]
struct A<'self> {
    a: &'self int
}

fn main() {}

deriving-lifetime.rs:2:11: 2:14 error: Illegal anonymous lifetime: anonymous lifetimes are not permitted here
deriving-lifetime.rs:2 #[deriving(Eq)]
                                  ^~~
deriving-lifetime.rs:2:11: 2:14 error: mismatched types: expected `&int` but found `&&int` (expected int but found &-ptr)
deriving-lifetime.rs:2 #[deriving(Eq)]
                                  ^~~
deriving-lifetime.rs:2:11: 2:14 error: mismatched types: expected `&int` but found `&&int` (expected int but found &-ptr)
deriving-lifetime.rs:2 #[deriving(Eq)]
                                  ^~~
error: aborting due to 3 previous errors

(I'm almost certain is a problem in the work I started in #5640 (although it's also present in the IterBytes and Encodable deriving code), since there are no lifetime considerations in any of that code at all; I'm currently working on finishing that work which will fix this.)