4 fail_compilation/ice9284.d(14): Error: template `__ctor` is not callable using argument types `!()(int)`
5 fail_compilation/ice9284.d(12): Candidate is: `this()(string)`
6 fail_compilation/ice9284.d(20): Error: template instance `ice9284.C.__ctor!()` error instantiating
15 // delegating to a constructor which not exists.