Infinite recursion for extern(C++) base call on Windows

[tim-dlang]

import std.stdio;

extern(C++) class A
{
    ~this(){}
}

extern(C++) interface I
{
    void f();
}

extern(C++) class B : A, I
{
    void f()
    {
        writeln("B.f");
    }
}

extern(C++) class C : B
{
    override void f()
    {
        writeln("C.f");
        super.f();
    }
}

void main()
{
    scope obj = new C;
    obj.f();
}

The above program works on Linux, but prints C.f until stack overflow on Windows.

[tim-dlang]

A workaround is to replace super.f() with:

        auto super_f = &B.f;
        version (CppRuntime_Microsoft)
            super_f.ptr = cast(void*)cast(I)this;
        super_f();

Setting the .ptr field is required, because it wrongly points to the C object, but should be shifted to the start of the interface. The test case should access members of the classes to check that the this pointer is correct. See also #23570.