heap allocate empty S with variadic ctor

[Dan]

This may be a manifestation of bug 1528. In the code below how 
can I heap allocate a default S? I can't seem to get a call to 
work.

In general structs are stack objects, but is there any problem 
with using the heap to get one?

Thanks
Dan

----------------------------------
import std.stdio;
import std.traits;

struct T { int t; }
struct S {
  T[] ts;

  this(U)(U[] values...) if (isImplicitlyConvertible!(U, T)) {
    foreach (value; values) {
      ts ~= value;
    }
  }
  this(this) {
    ts = ts.dup;
  }
}

void main() {
  S s2;
  S s = S(T(1), T(2), T(3));
  S *sp = new S(T(8));         // fine
  S *sp2 = new S([T(2430)]);   // fine
  // No: template thisstuff.S.__ctor does not match any function 
template declaration
  // S *sp3 = new S;
  // Same - here but also 'no constructor for S'
  // S sp3 = new S([]);
  // Same
  // S sp3 = new S();
}