5 __decltype (A); // { dg-error "must be an expression" }
8 __decltype (A); // { dg-error "must be an expression" }
9 __decltype (~A); // { dg-error "must be an expression" }
10 __decltype (B); // { dg-error "must be an expression" }
11 __decltype (~B); // { dg-error "must be an expression" }