RFR: 8170720: VetoableListDecorator: Indexes to remove are not aggregated

[Kevin Rushforth]

On Tue, 14 Jan 2025 01:56:10 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

> `VetoableListDecorator` does not correctly report removed indices. Instead of reporting ranges like `[0, 3)`, it always reports a pairwise list of single removals like `[0, 1, 1, 2, 2, 3)`.
> 
> The reason is a off-by-one error, and the fix is simple.

Looks good. I confirm that the added tests fail without and pass with the fix.

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Marked as reviewed by kcr (Lead).

PR Review: https://git.openjdk.org/jfx/pull/1675#pullrequestreview-2573623814