07bc130074
Don't check for late-bound vars, check for escaping bound vars Fixes an assertion that didn't make sense. Many valid and well-formed types *have* late-bound vars (e.g. `for<'a> fn(&'a ())`), they just must not have *escaping* late-bound vars in order to be normalized correctly. Addresses rust-lang/rust-clippy#11230, cc `@jyn514` and `@matthiaskrgr` changelog: don't check for late-bound vars, check for escaping bound vars. Addresses rust-lang/rust-clippy#11230