michael@0: // A Set iterator keeps the data alive.
michael@0: 
michael@0: load(libdir + "referencesVia.js");
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var key = {};
michael@0: var set = Set([key]);
michael@0: var iter = set[std_iterator]();
michael@0: referencesVia(iter, "**UNKNOWN SLOT 0**", set);
michael@0: referencesVia(set, "key", key);