mixin template T()
{
void f(C) {}
}
class C
{
mixin T V;
void f(C) {}
}
void main() {}
a.d(7): Error: class a.C use of a.C.T!().f(C _param_0) hidden by C is deprecated
_V._f(C) is inserted to class C by mixin within MixinIndentifier, it is not naked f(C).
Because C.V.f(C) and C.f(C) are not conflict.