Querying parameter passing semantics for `auto ref const` variables

[Nordlöw via Digitalmars-d-learn]

On Sunday, 15 January 2017 at 14:33:25 UTC, Nordlöw wrote:
> Is there a way to query at compile-time whether a call to

Further, overloading such as

     struct S { int x, y; }
     static f(in S s) {}
     static f(const ref S s) {}
     f(S.init);
     S s;
     f(s);

fails as

     declaration f is already defined