2 // build-pass (FIXME(62277): could be check-pass?)
5 impl<T> Trait<'_, '_> for T {}
7 // Here we wind up selecting `'a` and `'b` in the hidden type because
8 // those are the types that appear in the original values.
10 fn upper_bounds<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a, 'b> {
11 // In this simple case, you have a hidden type `(&'0 u8, &'1 u8)` and constraints like
20 // We use the fact that `'a: 0'` must hold (combined with the in
21 // constraint) to determine that `'0 = 'a` must be the answer.