rp.is_none ICE with fn taking <'self, T: Iterator<&'self str>>

[lilyball]

Reduced test case:

fn foo<'self, T: Iterator<&'self str>>(it: T) { }

fn main() { }

Original bug report follows:

---

The following function declaration triggers an ICE

fn foo<'self, T: Iterator<&'self str>>(it: T) -> ~[&'self str] {
    it.to_owned_vec()
}

fn main() {
    let xs = "a/b/c";
    printfln!(xs.split_iter('/'))
}

The failure is

task <unnamed> failed at 'assertion failed: rp.is_none()', /Users/kevin/Dev/rust/rust/src/librustc/middle/typeck/collect.rs:1097

[thestinger]

You can't use the 'self lifetime outside of an impl. The special case for 'self just needs to be removed and this issue will go away.

[lilyball]

I was surprised that it required me to use 'self here, but apparently it won't let me use Iterator<&'a str>.

[thestinger]

The workaround is to implement everything with ad-hoc traits until 'self isn't special anymore.

[pnkfelix]

probable subbug of #4846

[emberian]

No longer reproduces with:

 fn foo<'a, T: Iterator<&'a str>>(it: T) { }

 fn main() { }