lib: add ok as a self-reference

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: miguelmarcondesf

lib/assert.js

@@ -880,8 +880,10 @@ function strict(...args) {
   innerOk(strict, args.length, ...args);
 }
 
+// TODO(aduh95): take `ok` from `Assert.prototype` instead of a self-ref in a next major.
+assert.ok = assert;
 ArrayPrototypeForEach([
-  'ok', 'fail', 'equal', 'notEqual', 'deepEqual', 'notDeepEqual',
+  'fail', 'equal', 'notEqual', 'deepEqual', 'notDeepEqual',
   'deepStrictEqual', 'notDeepStrictEqual', 'strictEqual',
   'notStrictEqual', 'partialDeepStrictEqual', 'match', 'doesNotMatch',
   'throws', 'rejects', 'doesNotThrow', 'doesNotReject', 'ifError',