swc/crates/swc_ecma_parser/tests/tsc/emitDefaultParametersFunctionProperty.ts

// @target: es5
var obj2 = {
    func1(y = 10, ...rest) { },
    func2(x = "hello") { },
    func3(x: string, z: number, y = "hello") { },
    func4(x: string, z: number, y = "hello", ...rest) { },
}