4 fail_compilation/diag13082.d(24): Error: constructor `diag13082.C.this(int a)` is not callable using argument types `(string)`
5 fail_compilation/diag13082.d(24): cannot pass argument `b` of type `string` to parameter `int a`
6 fail_compilation/diag13082.d(25): Error: constructor `diag13082.S.this(int a)` is not callable using argument types `(string)`
7 fail_compilation/diag13082.d(25): cannot pass argument `b` of type `string` to parameter `int a`