exit status: 1 with stderr:
<stdin>:3:50: error: non-protocol, non-class type 'P' cannot be used within a protocol-constrained type func cast<P>(_ any: Any, _ type: P.Type) -> (C & P)? { ^ <stdin>:3:50: error: non-protocol, non-class type 'P' cannot be used within a protocol-constrained type func cast<P>(_ any: Any, _ type: P.Type) -> (C & P)? { ^ <stdin>:4:18: error: non-protocol, non-class type 'P' cannot be used within a protocol-constrained type any as? (C & P) ^