19   f(); // expected-error {{calling 'f' with incomplete return type 'A'}}  in g()
23   fp(); // expected-error {{calling function with incomplete return type 'A'}}  in g()
24   ((Func)0)();  // expected-error {{calling function with incomplete return type 'A'}}    in g()
27   b.f(); // expected-error {{calling 'f' with incomplete return type 'A'}}  in g()
29   b.operator()(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}  in g()
30   b.operator A(); // expected-error {{calling 'operator A' with incomplete return type 'A'}}  in g()
31   b.operator!(); // expected-error {{calling 'operator!' with incomplete return type 'A'}}  in g()
33   !b; // expected-error {{calling 'operator!' with incomplete return type 'A'}}  in g()
34   b(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}  in g()
35   b++; // expected-error {{calling 'operator++' with incomplete return type 'A'}}  in g()
36   b[0]; // expected-error {{calling 'operator[]' with incomplete return type 'A'}}  in g()
37   b + 1; // expected-error {{calling 'operator+' with incomplete return type 'A'}}  in g()
38   b->f(); // expected-error {{calling 'operator->' with incomplete return type 'A'}}  in g()
41   (b.*mfp)(); // expected-error {{calling function with incomplete return type 'A'}}  in g()
43   ft(42); // expected-error {{calling 'ft<int>' with incomplete return type 'A'}}  in g()