rem: } 
add: } 
context: function fib() {   var a = 0, b = 1;  while (true)   {     yield a;    var t = a;    a = b;    b += t;  } } 
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/0b675418ba636127763e94e614e62364d6caa659/326466-01.js/clean/js/tests/js1_7/geniter/326466-01.js