RFR: 8311545: Allow test symbol files to be kept in the test image

[David Holmes]

On Fri, 7 Jul 2023 21:01:01 GMT, Mikael Vidstedt <mikael at openjdk.org> wrote:

> Just double-checking: this change is just adding the support, there are (currently) no active uses of it?

Right, as per:
> direct testing in the context of [JDK-8311541](https://bugs.openjdk.org/browse/JDK-8311541)

that will be the first actual use.

Thanks for the review @vidmik

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PR Comment: https://git.openjdk.org/jdk/pull/14797#issuecomment-1633311104
PR Comment: https://git.openjdk.org/jdk/pull/14797#issuecomment-1633312660