How does laziness and UFCS interact?

[Logan Capaldo via Digitalmars-d-learn]

I just became aware of 
http://dlang.org/phobos/std_exception.html#.ifThrown . It's neat, 
but it seems non-obvious to me how lazy + UFCS should work in 
general.

consider


void lazily(T)(lazy T expression)
{
    expression();
}

It's clear when saying lazily(a.b().c()); that the whole of 
"a.b().c()" is going to be evaluated lazily. With UFCS though, 
I'm more unsure:

is a.b().c().lazily() -> lazily(a.b().c()) or is it more akin to

auto tmp = a.b();
lazily(tmp.c());

If the later is it possible to force the former while still using 
UFCS, ie is (a.b().c()).lazily() different than 
a.b().c().lazily()?