Update CGRectMake to CGRect in Swift 3 Automatically

The simplest solution is probably just to redefine the functions Apple took away. Example:

func CGRectMake(_ x: CGFloat, _ y: CGFloat, _ width: CGFloat, _ height: CGFloat) -> CGRect {
    return CGRect(x: x, y: y, width: width, height: height)
}

Put that in your module and all calls to CGRectMake will work again.