RFR: 8301342: Prefer ArrayList to LinkedList in LayoutComparator

[SWinxy]

On Sat, 28 Jan 2023 14:54:38 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> There is only add/iterator calls on this list. No removes from the head or something like this. Not sure why LinkedList was used, but ArrayList should be preferred as more efficient and widely used (more chances for JIT) collection

Personal preference is that the variables are typed as `List<T> xyz = new ArrayList<>();`.

-------------

Marked as reviewed by SWinxy at github.com (no known OpenJDK username).

PR: https://git.openjdk.org/jdk/pull/12274