RFR: 8272838: Move CriticalJNI tests out of tier1

[David Holmes]

On Mon, 23 Aug 2021 13:58:52 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> See the bug report for more discussion. These tests are tied in Epsilon and Shenandoah test groups, so I rehashed those a bit. Note there are no `tier2` or `tier3` test groups in Hotspot yet, which means these tests would only run as part of Epsilon and Shenandoah test suites. I would rehash tier2/3 in [JDK-8272914](https://bugs.openjdk.java.net/browse/JDK-8272914), while hooking up more runtime and GC tests there.
> 
> Motivational run time improvements:
> 
> 
> $  make run-test TEST=hotspot:tier1
> 
> # Before
> real	8m9.678s
> user	289m59.304s
> sys	27m46.347s
> 
> # After
> real	7m53.359s    # 15 seconds saved
> user	278m49.104s  # 11 minutes saved
> sys	28m2.516s
> 
> 
> Additional testing:
>  - [x] Checked `hotspot:tier1` run test lists before/after the patch, the difference is only these two lists
>  - [x] Some test performance measurements.

Hi Aleksey,

It was a bit hard to track the shuffling around but in the end this seems okay. :)

Thanks,
David

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

Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5219