fix(ext/node): don't call undefined nextTick fn (#20724)

The `process` global is not defined in this file.

Fixes #20441

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

cli/tests/integration/node_unit_tests.rs

@@ -58,6 +58,7 @@ util::unit_test_factory!(
     crypto_hash_test = crypto / crypto_hash_test,
     crypto_key_test = crypto / crypto_key_test,
     crypto_sign_test = crypto / crypto_sign_test,
+    events_test,
     fs_test,
     http_test,
     http2_test,

cli/tests/unit_node/events_test.ts

@@ -0,0 +1,28 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+import { deferred } from "../../../test_util/std/async/deferred.ts";
+import { EventEmitter } from "node:events";
+
+EventEmitter.captureRejections = true;
+
+Deno.test("regression #20441", async () => {
+  const promise = deferred();
+
+  const ee = new EventEmitter();
+
+  ee.on("foo", function () {
+    const p = new Promise((_resolve, reject) => {
+      setTimeout(() => {
+        reject();
+      }, 100);
+    });
+    return p;
+  });
+
+  ee.on("error", function (_) {
+    promise.resolve();
+  });
+
+  ee.emit("foo");
+  await promise;
+});

ext/node/polyfills/_events.mjs

@@ -42,6 +42,7 @@ import {
   validateFunction,
 } from "ext:deno_node/internal/validators.mjs";
 import { spliceOne } from "ext:deno_node/_utils.ts";
+import { nextTick } from "ext:deno_node/_process/process.ts";
 
 const kCapture = Symbol("kCapture");
 const kErrorMonitor = Symbol("events.errorMonitor");
@@ -206,7 +207,7 @@ function addCatch(that, promise, type, args) {
       then.call(promise, undefined, function (err) {
         // The callback is called with nextTick to avoid a follow-up
         // rejection from this promise.
-        process.nextTick(emitUnhandledRejectionOrErr, that, err, type, args);
+        nextTick(emitUnhandledRejectionOrErr, that, err, type, args);
       });
     }
   } catch (err) {