add: if (typeof host != "string") host = new XPCSafeJSObjectWrapper(host).toString();  
context: function dnsResolve(host) {    try {        return dns.resolve(host, 0).getNextAddrAsString();    } catch (e) {        return null;    }}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/09c937bbe4f6d5ca4891a6c0d6d083dc477a27b8/nsProxyAutoConfig.js/clean/netwerk/base/src/nsProxyAutoConfig.js