[Issue 24717] alias edge cases with tupleof

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24717

--- Comment #10 from Max Samukha <maxsamukha at gmail.com> ---
(In reply to Manu from comment #8)
> Nar, 'incorrect' is the only possible description, and I will die on this
> hill. 
> "Most people" is an understatement ;)
> 
> 'Explaining' things at the expense of reality is a physiological trap that
> our kind fall into very easily.
> This particular thing has gone on for way way too long, and it's time we put
> it to bed.

Anyway, if you guys are going to "fix" that, please make sure that there is
still a way to get a "contextless" reference to a member, that is, (an
alternative of) this still works:

void apply(alias foo)(ref S s)
{
    assert (__traits(child, s, foo) == 1);

    int delegate() dg;
    dg.ptr = &s;
    dg.funcptr = &foo;
    assert(dg() == 1);
}

struct S
{
    int x;
    int foo() => x;
}

void main()
{
    S s = S(1);
    apply!(S.foo)(s);
}

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