michael@0: // obj.getOwnPropertyNames() works when obj's referent is itself a cross-compartment wrapper.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger();
michael@0: var gobj = dbg.addDebuggee(g);
michael@0: g.p = {xyzzy: 8};  // makes a cross-compartment wrapper
michael@0: assertEq(gobj.getOwnPropertyDescriptor("p").value.getOwnPropertyDescriptor("xyzzy").value, 8);