net: name anonymous functions

the changes are related https://github.com/nodejs/node/issues/8913
regarding the naming of just the inline anonymous
functions that are not assigned to a variable

PR-URL: https://github.com/nodejs/node/pull/9357
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ilkka Myller <ilkka.myller@nodefield.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

lib/net.js

@@ -269,7 +269,7 @@ function onSocketEnd() {
     this.readable = false;
     maybeDestroy(this);
   } else {
-    this.once('end', function() {
+    this.once('end', function end() {
       this.readable = false;
       maybeDestroy(this);
     });
@@ -669,7 +669,7 @@ Socket.prototype._writeGeneric = function(writev, data, encoding, cb) {
   if (this.connecting) {
     this._pendingData = data;
     this._pendingEncoding = encoding;
-    this.once('connect', function() {
+    this.once('connect', function connect() {
       this._writeGeneric(writev, data, encoding, cb);
     });
     return;
@@ -991,7 +991,7 @@ function lookupAndConnect(self, options) {
   debug('connect: dns options', dnsopts);
   self._host = host;
   var lookup = options.lookup || dns.lookup;
-  lookup(host, dnsopts, function(err, ip, addressType) {
+  lookup(host, dnsopts, function emitLookup(err, ip, addressType) {
     self.emit('lookup', err, ip, addressType, host);
 
     // It's possible we were destroyed while looking this up.
@@ -1389,7 +1389,7 @@ Server.prototype.listen = function() {
 };
 
 function lookupAndListen(self, port, address, backlog, exclusive) {
-  require('dns').lookup(address, function(err, ip, addressType) {
+  require('dns').lookup(address, function doListening(err, ip, addressType) {
     if (err) {
       self.emit('error', err);
     } else {
@@ -1494,7 +1494,7 @@ Server.prototype.close = function(cb) {
 
   if (typeof cb === 'function') {
     if (!this._handle) {
-      this.once('close', function() {
+      this.once('close', function close() {
         cb(new Error('Not running'));
       });
     } else {