public void GC1()
{
WeakReference r = null;
using (var jc = new JSContext())
{
var a = new { };
r = new WeakReference(a);
jc["a"] = jc.Convert(a);
a = null;
}
System.GC.Collect();
System.GC.WaitForPendingFinalizers();
// Assert.False(r.IsAlive);
}