private static Type CreateDummyType(ModuleBuilder mb)
{
TypeBuilder tb = mb.DefineType("_._._.AAA.DUMMY",TypeAttributes.Public);
MethodBuilder mbb = tb.DefineMethod("test",MethodAttributes.Public,typeof(void),Type.EmptyTypes);
var ilg = mbb.GetILGenerator();
ilg.Emit(OpCodes.Ret);
tb.CreateType();
return tb;
}