test: replace anonymous closure functions with arrow functions

PR-URL: #24443
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>

Author: tpanthera

test/parallel/test-http-localaddress.js

@@ -27,26 +27,26 @@ if (!common.hasMultiLocalhost())
 consthttp=require('http');
 constassert=require('assert');
 
-constserver=http.createServer(function(req,res){
+constserver=http.createServer((req,res)=>{
 console.log(`Connect from: ${req.connection.remoteAddress}`);
 assert.strictEqual(req.connection.remoteAddress,'127.0.0.2');
 
-req.on('end',function(){
+req.on('end',()=>{
 res.writeHead(200,{'Content-Type': 'text/plain'});
 res.end(`You are from: ${req.connection.remoteAddress}`);
 });
 req.resume();
 });
 
-server.listen(0,'127.0.0.1',function(){
+server.listen(0,'127.0.0.1',()=>{
 constoptions={host: 'localhost',
-port: this.address().port,
+port: server.address().port,
 path: '/',
 method: 'GET',
 localAddress: '127.0.0.2'};
 
 constreq=http.request(options,function(res){
-res.on('end',function(){
+res.on('end',()=>{
 server.close();
 process.exit();
 });