Callee destruction forces destructor attributes onto any function that receive by-value

[TurkeyMan]

With recent move-semantics; by-value passing will have increased emphasis.

Callee destruction is largely incompatible with move semantics though; any function that receives an S by value must destruct S at end of scope, which means any attributes on the destructor are always asserted into any function that receives any S by value.
This is un-workable. Move semantics are often used to pass objects with elaborate construction/destruction through restrictive scopes; because moved objects don't allocate/free any memory when transferring ownership, a move is usually pure, @nogc, nothrow, where construction/destruction may often not tolerate any of those restrictions.

We need to consider caller-destruction. Right now, the best workaround for this problem is to attribute the function extern(C++) just to gain access to the preferred calling convention.