func demo() {
    var x: Int
    if (x == 2) {
        return (x < 2)
    }
    else if (y == 2) {

    }

    while(true) {

    }
}

func demo() {
    var x: Int
    if (x == 2) {
        return (x < 2)
    }
    else if (y == 2) {

    }

    while(true) {

    }

    guard (true) else { }
}

Add test for guard statement
Add test for guard statement
