12   template<typename T1> struct C2 {  struct
26 extern template void C1<int>::C2<long>::s_var_2;
27 extern template void C1<int>::C2<long>::s_func_2();
28 extern template void C1<int>::C2<long>::meth_2();
29 extern template char C1<int>::C2<long>::s_tvar_2<char>;
30 extern template void C1<int>::C2<long>::tmeth_2<char>();
93   return C1<int>::C2<long>::s_var_2;  in func_14()
97 …return C1<int>::C2<char>::s_var_2;  //expected-warning {{instantiation of variable 'C1<int>::C2<ch…  in func_15()
102   C1<int>::C2<long>::s_func_2();  in func_16()
106 …C1<int>::C2<char>::s_func_2(); // expected-warning{{instantiation of function 'C1<int>::C2<char>::…  in func_17()
110 void func_18(C1<int>::C2<long> *x) {  in func_18()
114 void func_19(C1<int>::C2<char> *x) {  in func_19()
120   return C1<int>::C2<long>::s_tvar_2<char>;  in func_20()
124 …return C1<int>::C2<long>::s_tvar_2<long>; // expected-warning{{instantiation of variable 'C1<int>:…  in func_21()
128 void func_22(C1<int>::C2<long> *x) {  in func_22()
132 void func_23(C1<int>::C2<long> *x) {  in func_23()