test: update test-domain-uncaught-exception.js

file: test/parallel/test-domain-uncaught-exception.js

1. There are three setTimeout() in the file and they do not specify a
duration (the second argument), so I change them to setImmediate()
instead.

2. There are four callbacks that take an argument called `err` but that
argument is never used, so I removed them.

PR-URL: #10193
Reviewed-By: Sam Roberts <sam@strongloop.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

test/parallel/test-domain-uncaught-exception.js

@@ -25,7 +25,7 @@ function test1() {
  d.run(function() {
  setTimeout(function onTimeout() {
  throw new Error('boom!');
- });
+ }, 1);
  });
 }
 
@@ -59,7 +59,7 @@ function test3() {
  const d3 = domain.create();
  const d4 = domain.create();
 
- d3.on('error', function onErrorInD3Domain(err) {
+ d3.on('error', function onErrorInD3Domain() {
  process.send('errorHandledByDomain');
  });
 
@@ -88,15 +88,15 @@ function test4() {
  const d5 = domain.create();
  const d6 = domain.create();
 
- d5.on('error', function onErrorInD2Domain(err) {
+ d5.on('error', function onErrorInD2Domain() {
  process.send('errorHandledByDomain');
  });
 
  d5.run(function() {
  d6.run(function() {
  setTimeout(function onTimeout() {
  throw new Error('boom!');
- });
+ }, 1);
  });
  });
 }
@@ -115,7 +115,7 @@ function test5() {
  const d7 = domain.create();
  const d8 = domain.create();
 
- d8.on('error', function onErrorInD3Domain(err) {
+ d8.on('error', function onErrorInD3Domain() {
  process.send('errorHandledByDomain');
  });
 
@@ -139,15 +139,15 @@ function test6() {
  const d9 = domain.create();
  const d10 = domain.create();
 
- d10.on('error', function onErrorInD2Domain(err) {
+ d10.on('error', function onErrorInD2Domain() {
  process.send('errorHandledByDomain');
  });
 
  d9.run(function() {
  d10.run(function() {
  setTimeout(function onTimeout() {
  throw new Error('boom!');
- });
+ }, 1);
  });
  });
 }