rem: return "Boolean:" + this; 
add: return "Boolean:" + this; 
context: DWREngine._serializeBoolean = function(batch, referto, data, name) {    return "Boolean:" + this;};
meta: 266	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/266/769a5807f342d8541951d74937d724ab38fcafe0/engine.js/buggy/java/uk/ltd/getahead/dwr/engine.js