RFR: 8327390: JitTester: Implement temporary folder functionality

[Leonid Mesnik]

On Tue, 5 Mar 2024 19:58:04 GMT, Evgeny Nikitin <enikitin at openjdk.org> wrote:

> The JITTester relies on standard OS / Java library functionality to create temporary folders and never cleans them.
> 
> This creates problems in CI machines and also complicates problems investigation. We need to have a dedicated TempDir entity that we could adjust during problems investigations and development. It can also be a good place for various file-related activities, like executing FailureHandler.

Marked as reviewed by lmesnik (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18128#pullrequestreview-1920425205