readline,zlib: named anonymous functions

PR-URL: #21792
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>

lib/readline.js

@@ -845,7 +845,7 @@ Interface.prototype._ttyWrite = function(s, key) {
         if (this.listenerCount('SIGTSTP') > 0) {
           this.emit('SIGTSTP');
         } else {
-          process.once('SIGCONT', (function(self) {
+          process.once('SIGCONT', (function continueProcess(self) {
             return function() {
               // Don't raise events if stream has already been abandoned.
               if (!self.paused) {

lib/zlib.js

@@ -473,7 +473,7 @@ function processChunkSync(self, chunk, flushFlag) {
   var chunkSize = self._chunkSize;
 
   var error;
-  self.on('error', function(er) {
+  self.on('error', function onError(er) {
     error = er;
   });
 
@@ -691,11 +691,11 @@ inherits(Unzip, Zlib);
 
 function createConvenienceMethod(ctor, sync) {
   if (sync) {
-    return function(buffer, opts) {
+    return function syncBufferWrapper(buffer, opts) {
       return zlibBufferSync(new ctor(opts), buffer);
     };
   } else {
-    return function(buffer, opts, callback) {
+    return function asyncBufferWrapper(buffer, opts, callback) {
       if (typeof opts === 'function') {
         callback = opts;
         opts = {};