SharedPtr.opCmp

{
	const a = SharedPtr!long.make(42);
	const b = SharedPtr!long.make(123);
	const n = SharedPtr!long.init;

	assert(a <= a);
	assert(a >= a);

	assert((a < b) == !(a >= b));
	assert((a > b) == !(a <= b));

	assert(a > n);
	assert(a > null);

	assert(n < a);
	assert(null < a);
}

{
	const a = SharedPtr!long.make(42);
	const b = SharedPtr!long.make(123);

	assert(a <= a.element);
	assert(a.element >= a);

	assert((a < b.element) == !(a.element >= b));
	assert((a > b.element) == !(a.element <= b));
}