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 // obj.defineProperty with vague descriptors works like Object.defineProperty

 var g = newGlobal();

 var dbg = new Debugger;

 var gw = dbg.addDebuggee(g);

 gw.defineProperty("p", {configurable: true, enumerable: true});

 assertEq(g.p, undefined);

 var desc = g.Object.getOwnPropertyDescriptor(g, "p");

 assertEq(desc.configurable, true);

 assertEq(desc.enumerable, true);

 assertEq(desc.value, undefined);

 assertEq(desc.writable, false);

 gw.defineProperty("q", {});

 assertEq(g.q, undefined);

 var desc = g.Object.getOwnPropertyDescriptor(g, "q");

 assertEq(desc.configurable, false);

 assertEq(desc.enumerable, false);

 assertEq(desc.value, undefined);

 assertEq(desc.writable, false);