repl: name anonymous functions

the changes are related to 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/9356
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

lib/repl.js

@@ -354,7 +354,7 @@ function REPLServer(prompt,
 
   self.eval = self._domain.bind(eval_);
 
-  self._domain.on('error', function(e) {
+  self._domain.on('error', function debugDomainError(e) {
     debug('domain error');
     const top = replMap.get(self);
     internalUtil.decorateErrorStack(e);
@@ -436,13 +436,13 @@ function REPLServer(prompt,
     };
   }
 
-  self.on('close', function() {
+  self.on('close', function emitExit() {
     self.emit('exit');
   });
 
   var sawSIGINT = false;
   var sawCtrlD = false;
-  self.on('SIGINT', function() {
+  self.on('SIGINT', function onSigInt() {
     var empty = self.line.length === 0;
     self.clearLine();
     self.turnOffEditorMode();
@@ -465,7 +465,7 @@ function REPLServer(prompt,
     self.displayPrompt();
   });
 
-  self.on('line', function(cmd) {
+  self.on('line', function onLine(cmd) {
     debug('line %j', cmd);
     sawSIGINT = false;
 
@@ -586,7 +586,7 @@ function REPLServer(prompt,
     }
   });
 
-  self.on('SIGCONT', function() {
+  self.on('SIGCONT', function onSigCont() {
     if (self.editorMode) {
       self.outputStream.write(`${self._initialPrompt}.editor\n`);
       self.outputStream.write(
@@ -951,7 +951,7 @@ function complete(line, callback) {
           addStandardGlobals(completionGroups, filter);
           completionGroupsLoaded();
         } else {
-          this.eval('.scope', this.context, 'repl', function(err, globals) {
+          this.eval('.scope', this.context, 'repl', function ev(err, globals) {
             if (err || !Array.isArray(globals)) {
               addStandardGlobals(completionGroups, filter);
             } else if (Array.isArray(globals[0])) {
@@ -968,7 +968,7 @@ function complete(line, callback) {
         }
       } else {
         const evalExpr = `try { ${expr} } catch (e) {}`;
-        this.eval(evalExpr, this.context, 'repl', function(e, obj) {
+        this.eval(evalExpr, this.context, 'repl', function doEval(e, obj) {
           // if (e) console.log(e);
 
           if (obj != null) {