BringToTop = function (array, item)
{
    var currentIndex = array.indexOf(item);

    if (currentIndex !== -1 && currentIndex < array.length)
    {
        array.splice(currentIndex, 1);
        array.push(item);
    }

    return item;
}
Moves the given element to the top of the array.
The array is modified in-place.

@function Phaser.Utils.Array.BringToTop
@since 3.4.0

@param {array} array - The array.
@param {*} item - The element to move.

@return {*} The element that was moved.