michael@0: // Check marking through the elements of a Set.
michael@0: 
michael@0: load(libdir + "referencesVia.js");
michael@0: 
michael@0: var s = new Set;
michael@0: for (var i = 0; i < 20; i++) {
michael@0:     var t = new Set;
michael@0:     t.add(s);
michael@0:     assertEq(referencesVia(t, 'key', s), true);
michael@0:     s = t;
michael@0: }
michael@0: 
michael@0: gc();
michael@0: gc();
michael@0: 
michael@0: // TODO: walk the chain and make sure it's still intact