domain: add name to monkey-patched emit function

The domain module monkey patches EventEmitter.prototype.emit(),
however the function's name was becoming the empty string. This
commit forces the new emit function to have the proper name.

PR-URL: #37550
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Gerhard Stöbich <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: cjihrig

lib/domain.js

@@ -456,7 +456,7 @@ EventEmitter.init = function() {
 };
 
 const eventEmit = EventEmitter.prototype.emit;
-EventEmitter.prototype.emit = function(...args) {
+EventEmitter.prototype.emit = function emit(...args) {
   const domain = this.domain;
 
   const type = args[0];

test/parallel/test-domain-dep0097.js

@@ -9,7 +9,7 @@ const inspector = require('inspector');
 
 process.on('warning', common.mustCall((warning) => {
   assert.strictEqual(warning.code, 'DEP0097');
-  assert.match(warning.message, /Triggered by calling <anonymous> on process/);
+  assert.match(warning.message, /Triggered by calling emit on process/);
 }));
 
 domain.create().run(() => {