Property definitions

android $ NativeSoundPool :: load_path
	fun load_path(path: JavaString, priority: Int): Int in "Java" `{
		try {
			int id =  self.load(path, (int)priority);
			return id;
		}catch(Exception e){
			return -1;
		}
	`}
lib/android/audio.nit:190,2--197,3