[lang-ref] ( allow_trailing_comma_in_parameter_list ) ( swift )

@Test func allowTrailingCommaInParameterList() {
	// Yes
	func func01(
		a: Int,
		b: Int, // <- here
	) -> Int {
		return a + b
	}

	let r = func01(
		a: 3,
		b: 5, // <- and here
	)

	#expect(r == 8)
}