fix: use human-friendly sorting in Outline

[sebthom]

This addresses eclipse-wildwebdeveloper/wildwebdeveloper#1616

Currently sorting does not sort numbers numerical.

before PR	after PR

[mickaelistria]

That's a good change.
IIRC there is a similar pattern somewhere in Platform. Did you check whether there isn't such a comparator already existing that we could easily reuse?

[rubenporras]

That's a good change. IIRC there is a similar pattern somewhere in Platform. Did you check whether there isn't such a comparator already existing that we could easily reuse?

I was thinking the same. This seems a very common problem. Could we use some code in the platform or in Guava (to mention one library we already use) to achieve it?

[sebthom]

I haven't found one. I naively thought that Comparator.naturalOrder() does the trick but it doesn't.

[mickaelistria]

ok, thanks!