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//@ check-pass
trait MultiRegionTrait<'a, 'b> {}
impl<'a, 'b> MultiRegionTrait<'a, 'b> for (&'a u32, &'b u32) {}
fn no_least_region<'a, 'b>(x: &'a u32, y: &'b u32) -> impl MultiRegionTrait<'a, 'b> {
// Here we have a constraint that:
//
// (x, y) has type (&'0 u32, &'1 u32)
//
// where
//
// 'a: '0
//
// then we require that `('0 u32, &'1 u32): MultiRegionTrait<'a,
// 'b>`, which winds up imposing a requirement that `'0 = 'a` and
// `'1 = 'b`.
(x, y)
}
fn main() {}
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