Openfl.display.Loader loadBytes compile error

I got the line generating the compile errors from this post:

this line:

var swf = new format.SWF (bytes);

If I comment it out, I don’t get the compile errors I listed earlier in this thread.
I’ve been looking for a way to load a swf at runtime outside the flash target, and I thought this was supposed to create a swf object from a loaded byteArray… We don’t have any bytecode in the swfs to be loaded