rem: obj.prop = obj; 
add: obj.prop = obj; 
context: function testThis(obj){  sToSource = obj.toSource();  obj.prop = obj;   sToSource = obj.toSource();}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/0b675418ba636127763e94e614e62364d6caa659/regress-44009.js/buggy/js/tests/js1_5/extensions/regress-44009.js