1 #![feature(type_alias_impl_trait)]
3 type Foo = impl std::fmt::Debug;
5 fn foo(b: bool) -> Foo {
9 let x: u32 = foo(false) + 42; //~ ERROR cannot add
13 fn bar(b: bool) -> impl std::fmt::Debug {
17 let x: u32 = bar(false) + 42; //~ ERROR cannot add