for (var i = 0; i != N; ++i) { var re = chainTop(); chainTop = re.previous; } if (chainTop !== null) throw "Bad chainTop"; 
for (var i = 0; i != N; ++i) { var re = chainTop(); chainTop = re.previous; } if (chainTop !== null) throw "Bad chainTop"; 
function check(chainTop, N) {        for (var i = 0; i != N; ++i) {                var re = chainTop();                chainTop = re.previous;        }        if (chainTop !== null)                 throw "Bad chainTop";}
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/3703c3c05f398a63e55992f7687ef65273b26d6a/regress-324278.js/clean/js/tests/js1_5/GC/regress-324278.js