test: modify order of parameters for assertion

PR-URL: #24430
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>

test/parallel/test-promises-unhandled-rejections.js

@@ -634,8 +634,8 @@ asyncTest(
       const e = new Error('error');
       const domainError = new Error('domain error');
       onUnhandledSucceed(done, function(reason, promise) {
-        assert.strictEqual(e, reason);
-        assert.strictEqual(domainError, domainReceivedError);
+        assert.strictEqual(reason, e);
+        assert.strictEqual(domainReceivedError, domainError);
       });
       Promise.reject(e);
       process.nextTick(function() {