Séraphin Hochart phin

## CustomOperatorNilCheck.swift
import Cocoa

/*
CoffeeScript funfact: I have 2 values `a` and `b`, and wanted a 3rd value `x` that is equal to `a` if it exists, otherwise is `b` if it exists, or is `undefined` if both are
sami [18:27]
I was able to do that with just `x = a ? b`
*/

infix operator ?| {}
func ?| <T>(left: T?, right: T?) -> T? {
	import Cocoa

	/*
	CoffeeScript funfact: I have 2 values `a` and `b`, and wanted a 3rd value `x` that is equal to `a` if it exists, otherwise is `b` if it exists, or is `undefined` if both are
	sami [18:27]
	I was able to do that with just `x = a ? b`
	*/

	infix operator ?\| {}
	func ?\| <T>(left: T?, right: T?) -> T? {