RFR: 8352645: Add tool support to check order of includes [v3]

[Doug Simon]

On Thu, 27 Mar 2025 10:44:48 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

> I just noticed that TestIncludesAreSorted is not run by GHA. How about we move `test/hotspot/jtreg/sources` into `tier1_common`:

I went ahead and pushed this change.

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PR Comment: https://git.openjdk.org/jdk/pull/24247#issuecomment-2758187724