48   template<int n> struct S { };  struct
62   template<typename T> struct S { static const int k; };  argument
71   template<typename T> struct S {  struct
72     static volatile int &r;
95     template<typename T> struct S {  struct
96       S() : n(0) {}  in S()  argument
97       S(const S&) : n(T::error) {}  in S()  function
98       int n;
104     template<typename T> struct S {  struct
105       constexpr S() : n(0) {}  in S()  argument
106       constexpr S(const S&) : n(T::error) {} // expected-error {{has no members}}  in S()  argument
107       int n;
199   struct S {  struct
200     template<typename T> constexpr S(T) : n(T::error) {} // expected-error {{no members}}  in S()  argument
201     int n;