std/node: add util.callbackify (#5415)

This adds [Node's `util.callbackify`][0] to `std/node/util.ts`.

I lifted most of this from the [original Node source code][1] (and [its
tests][2]). I tried to make minimal modifications to the source.

I made a few arbitrary decisions:

- I was unable to do the function's types elegantly. I made overloads
  for functions that have 0 to 5 (inclusive) arguments, excluding the
  callback. I would love to know a better way to do this. (It seems that
  the folks at DefinitelyTyped [were also stumped][3], though maybe
  their solution is deliberate.)
- There are a few edge cases that cause custom Node errors to be
  produced. Instead of re-implementing those errors completely, I
  created simplified classes. These are mostly correct but are not
  identical to the real Node errors.
- The tests implement a possibly-arcane `TestQueue` class. I originally
  used a lot of inline promises but found it too repetitive.

Closes [#5366][4].

[0]: https://nodejs.org/api/util.html#util_util_callbackify_original
[1]: https://github.com/nodejs/node/blob/47804933012841f2dc90626bdcc161adf34569a5/lib/util.js#L183-L226
[2]: https://github.com/nodejs/node/blob/47804933012841f2dc90626bdcc161adf34569a5/test/parallel/test-util-callbackify.js
[3]: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/7d24857ddb07ab637dfa8c477d13352f8a8206fc/types/node/util.d.ts#L61-L84
[4]: https://github.com/denoland/deno/issues/5366

1 files changed, 2 insertions, 0 deletions

diff --git a/std/node/util.ts b/std/node/util.ts
index 73cbbf823..a61dc30b2 100644
--- a/std/node/util.ts
+++ b/std/node/util.ts
@@ -1,3 +1,5 @@
+export { callbackify } from "./_util/_util_callbackify.ts";
+
 export function isArray(value: unknown): boolean {
   return Array.isArray(value);
 }