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 // Debugger.Object.prototype.global accessor surfaces.

 load(libdir + 'asserts.js');

 var dbg = new Debugger;

 var g = newGlobal();

 var gw = dbg.addDebuggee(g);

 assertEq(Object.getOwnPropertyDescriptor(gw, 'global'), undefined);

 var d = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(gw), 'global');

 assertEq(d.enumerable, false);

 assertEq(d.configurable, true);

 assertEq(typeof d.get, "function");

 assertEq(d.get.length, 0);

 assertEq(d.set, undefined);

 // This should not throw.

 gw.global = '';

 // This should throw.

 assertThrowsInstanceOf(function () { "use strict"; gw.global = {}; }, TypeError);

 assertEq(gw.global, gw);

 // You shouldn't be able to apply the accessor to the prototype.

 assertThrowsInstanceOf(function () { return Debugger.Object.prototype.global; },

                        TypeError);