4 fail_compilation/ice13459.d(12): Error: undefined identifier `B`
5 fail_compilation/ice13459.d(18): Error: none of the overloads of `opSlice` are callable using argument types `(int, int)`
6 fail_compilation/ice13459.d(11): Candidate is: `ice13459.A.opSlice()`
11 auto opSlice() const {}
12 auto opSlice() { return B
; }
18 foreach (fi
; df[0..0]) {}