[jdk17u] RFR: 8270094: Shenandoah: Provide human-readable labels for test configurations

[Aleksey Shipilev]

On Thu, 19 Aug 2021 10:05:26 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to improve testing UX.
> 
> Additional testing:
>  - [x] hotspot_gc_shenandoah passes

Got the push approval.

-------------

PR: https://git.openjdk.java.net/jdk17u/pull/29