43   typedef X1<T> A;  typedef
56 template<class C> struct A {};  struct
57 template <> struct A<int>{A(const A<int>&);};  struct
142   template <class T, class U> struct A {  struct
143     A() {}  in A()  argument
144     A(const A<T,U> &o) {}  in A()  function
145     A(A<T,T> o) {}  in A()  argument
159   template <class T, class U> struct A {  struct
160     A() {} // expected-note {{not viable: requires 0 arguments}}  in A()  argument
161     A(A<T,U> &o) {} // expected-note {{not viable: expects an l-value}}  in A()  argument
162     A(A<T,T> o) {} // expected-note {{ignored: instantiation takes its own class type by value}}  in A()  function
172   template <class T, class U> struct A {  struct
173     A() {}  in A()  function
174     A(A<T,U> &o) {}  in A()  argument
175     A(A<T,T> o) {}  in A()  function