rem: let b = function(){}.__parent__; print(b[1] = throwError); })(); 
add: let b = function(){}.__parent__; print(b[1] = throwError); })(); 
context:   (function() {    let b = function(){}.__parent__;    print(b[1] = throwError);  })();
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/3703c3c05f398a63e55992f7687ef65273b26d6a/regress-355583.js/clean/js/tests/js1_7/extensions/regress-355583.js