function compareMessagesByFixRange(a, b) {
    return a.fix.range[0] - b.fix.range[0] || a.fix.range[1] - b.fix.range[1];
}
function compareMessagesByFixRange(a, b) {
    return a.fix.range[0] - b.fix.range[0] || a.fix.range[1] - b.fix.range[1];
}
function compareMessagesByFixRange ( a , b ) { return a . fix . range [ 0 ] - b . fix . range [ 0 ] || a . fix . range [ 1 ] - b . fix . range [ 1 ] ; }
Compares items in a messages array by range.
@param {Message} a The first message.
@param {Message} b The second message.
@returns {int} -1 if a comes before b, 1 if a comes after b, 0 if equal.
@private
Compares items in a messages array by range .
Compare messages by fix range