Property definitions

ios $ UIButton :: defaultinit
# Button on the touch screen
extern class UIButton in "ObjC" `{ UIButton * `}
	super UIControl

	new(kind: UIButtonType) in "ObjC" `{ return [UIButton buttonWithType: kind]; `}

	# Wraps: `[self titleLabel]`
	fun title_label: UILabel in "ObjC" `{
		return [self titleLabel];
	`}

	# Wraps: `[self setTitle forState]`
	fun title=(text: NSString) in "ObjC" `{
		[self setTitle:text forState:UIControlStateNormal];
	`}

	# Wraps: `[self currentTitle]`
	fun current_title: NSString in "ObjC" `{
		return [self currentTitle];
	`}
end
lib/ios/ui/uikit.nit:133,1--153,3