public void HashCode()
{
Interpret(
@"var h1 = {}.hash_code();
var obj = {};
var h2 = obj.hash_code();
var h3 = obj.hash_code();
var e1 = h1 == h2;
var e2 = h2 == h3;")
.Equal("e1", false)
.Equal("e2", true);
}