[lang-ref] ( param_with_default_value ) ( swift )

@Test func paramWithDefaultValue() {
	// func func01(_ a: Int, _ b: Int = 2) -> Int
	func func01(_ a: Int, _ b: Int = 2) -> Int {
		return a + b
	}

	let r = func01(3)

	#expect(r == 5)
}