Comparator
inline fun <T> Comparator(
crossinline comparison: (a: T, b: T) -> Int
): Comparator<T>Creates a Comparator with the provided comparison function.
Parameters
comparison - function that compares its two arguments for order.
Must return zero if the arguments are equal, a negative number
if the first argument is less than the second, or a positive number
if the first argument is greater than the second.
Return Comparator object with the provided implementation of the comparison function.