stream: readable.compose fails to return a Duplex

[Renegade334]

The intention of readable.compose() is that the method returns the Duplex from the internals/streams/compose function unscathed.

Unfortunately, because it's merged onto Readable.prototype as a "stream-returning operator":

node/lib/stream.js

Lines 64 to 83 in 8a3482e

	const streamKeys = ObjectKeys(streamReturningOperators);
	for (let i = 0; i < streamKeys.length; i++) {
	const key = streamKeys[i];
	const op = streamReturningOperators[key];
	function fn(...args) {
	if (new.target) {
	throw new ERR_ILLEGAL_CONSTRUCTOR();
	}
	return Stream.Readable.from(ReflectApply(op, this, args));
	}
	ObjectDefineProperty(fn, 'name', { __proto__: null, value: op.name });
	ObjectDefineProperty(fn, 'length', { __proto__: null, value: op.length });
	ObjectDefineProperty(Stream.Readable.prototype, key, {
	__proto__: null,
	value: fn,
	enumerable: false,
	configurable: true,
	writable: true,
	});
	}

...its return value is passed via Readable.from(), clobbering the Duplex into a Readable.

The .compose() operator needs specifically to bypass this mechanism.

Refs: #44937

[BetaDude40]

I can try and work on this