1 fn bar() -> impl Fn() {
2 wrap(wrap(wrap(wrap(foo()))))
5 fn foo() -> impl Fn() {
6 //~^ WARNING 5:1: 5:22: function cannot return without recursing [unconditional_recursion]
7 //~| ERROR 5:13: 5:22: cannot resolve opaque type [E0720]
8 wrap(wrap(wrap(wrap(wrap(wrap(wrap(foo())))))))
11 fn wrap(f: impl Fn()) -> impl Fn() {