sameLine.returnBody - separate setting for single-line body

[gene-pavlovsky]

Describe the Feature

The sameLine.returnBody option allows a complex return body to be moved to a new line.
However, it also forces real simple returns on the same line (e.g. return 10 becomes two lines), which is undesirable. It would be good if there was a way to have complex bodies such as if/else, switch etc. on a newline, and simple ones on the same line (the question is how exactly to distinguish simple from complex).

(Optional) Sample of desired output

class Main {
	function a() {
		return 10;
		return x < 0 ? "negative" : "non-negative";
	}
	function b() {
		return
			if (x < 0) "negative";
			else "non-negative";
		return
			switch y {
				case "negative": -1;
				case "non-negative": 1;
			}
	}
}