Possibly a bug in OperationError wrapping

[charlag]

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Please answer the questions the best you can:

1. What version of bluebird is the issue happening on?
   3.7.2, master

2. What platform and version? (For example Node.js 0.12 or Google Chrome 32)
   any, e.g. Chrome 92

3. Did this issue happen with earlier version of bluebird?
   Unsure

Looking at the code for Bluebird we stumbled upon this function which is used to decide on OperationError wrapping:

bluebird/src/nodeback.js

Lines 8 to 11 in 808fdf8

	function isUntypedError(obj) {
	return obj instanceof Error &&
	es5.getPrototypeOf(obj) === Error.prototype;
	}

This looks like the function should be reverted if we assume that "untyped error" is everything that doesn't inherit from Error. Documentation is not clear about that.