rem: return tokens.split(/\]?(?:\[|$)/).shift(); 
add: return tokens.split(/\]?(?:\[|$)/).shift(); 
context: function testfunc(tokens) {    return tokens.split(/\]?(?:\[|$)/).shift();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/e0e327827f663f9352c9533aaa13268e295862ea/regress-254974.js/buggy/js/tests/js1_5/Regress/regress-254974.js