209     namespace ns {  namespace
213 …std::ostream& operator<<(std::ostream& out, ns::Data data) { // expected-note {{should be declared…  in operator <<()
218       Dump(ns::Data()); // expected-note {{here}}  in Use()
228     namespace ns {  namespace
236 …std::ostream &print(std::ostream &out, ns::Data); // expected-note {{should be declared prior to t…
238 …std::ostream &print(std::ostream &out, std::pair<ns::Data, ns2::Data>); // expected-note {{should …
242       Dump(ns::Data()); // expected-note {{requested here}}  in Use()
244       Dump(std::pair<ns::Data, ns2::Data>()); // expected-note {{requested here}}  in Use()
254     namespace ns {  namespace
258 …ns::Data operator!(ns::Data); // expected-note {{should be declared prior to the call site or in n…
261       Negate(ns::Data()); // expected-note {{requested here}}  in Use()