RFR: 8272914: Create hotspot:tier2 and hotspot:tier3 test groups [v2]

[Aleksey Shipilev]

On Wed, 25 Aug 2021 02:24:41 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> test/hotspot/jtreg/TEST.groups line 457:
>> 
>>> 455:   -:tier2 \
>>> 456:   :hotspot_tier3_runtime \
>>> 457:   -runtime/InvocationTests \
>> 
>> Why are these excluded?
>
> Sorry I missed the comment in the PR.
> 
> What is your time criteria?

So the current `runtime/InvocationTests` run for about 35 minutes real and 58 minutes user time. This blows up tier3 real time for about 5x. So I chickened out adding them to tier3. But after sleeping on it, I think those still make sense to run in tier3, and then we should optimize the tests themselves, for example with [JDK-8272970](https://bugs.openjdk.java.net/browse/JDK-8272970). See new commit.

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PR: https://git.openjdk.java.net/jdk/pull/5241