rem: var o = { __iterator__: function () { writeLineToLog(12); yield 42; } }; 
add: var o = { __iterator__: function () { print(12); yield 42; } }; 
context:   var o = { __iterator__: function () { writeLineToLog(12); yield 42; } };
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/f577de167a7d5c2c46bde55f8215c4317b1d256f/regress-346021.js/clean/js/tests/js1_7/iterable/regress-346021.js