RFR: 8323601: Improve LayoutPath.PathElement::toString [v4]

[Maurizio Cimadamore]

On Tue, 30 Jan 2024 16:58:35 GMT, Per Minborg <pminborg at openjdk.org> wrote:

>> This PR proposes to add an improved Improve `LayoutPath.PathElement::toString` method simplifying debugging.
>> 
>> Opinions and suggestions for `static PathElement sequenceElement(long start, long step)` are welcome.
>
> Per Minborg has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Rework the LayoutPath::toString output

Good job

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PR Review: https://git.openjdk.org/jdk/pull/17417#pullrequestreview-1853361331