rem: for (var b in gen1()) 
add: for (var b in gen1()) 
context:   function gen2() {    for (var b in gen1())       yield;  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/e0e327827f663f9352c9533aaa13268e295862ea/regress-350621.js/buggy/js/tests/js1_7/geniter/regress-350621.js