test: use common.hasIntl instead of typeof Intl

PR-URL: #17311
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-intl-v8BreakIterator.js

@@ -3,7 +3,7 @@ const common = require('../common');
 const assert = require('assert');
 const vm = require('vm');
 
-if (typeof Intl === 'undefined')
+if (!common.hasIntl)
   common.skip('missing Intl');
 
 assert(!('v8BreakIterator' in Intl));