rust/tests/ui/nll/closure-requirements/region-lbr1-does-outlive-lbr2-because-implied-bound.rs

// Basic test for free regions in the NLL code. This test does not
// report an error because of the (implied) bound that `'b: 'a`.

//@ check-pass
//@ compile-flags:-Zverbose-internals

fn foo<'a, 'b>(x: &'a &'b u32) -> &'a u32 {
    &**x
}

fn main() {}