RFR: 8273314: Add tier4 test groups

[Sergey Bylokhov]

On Fri, 3 Sep 2021 09:10:20 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> During the review of JDK-8272914 that added hotspot:tier{2,3} groups, @iignatev suggested to create tier4 groups that capture all tests not in tiers{1,2,3}. I have excluded `vmTestbase` and `hotspot:tier4,` because they take 10+ hours on my highly parallel machine. I have also excluded `applications` from `hotspot:tier4`, because they require test dependencies (e.g. jcstress).
> 
> Sample run:
> 
> 
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>> jtreg:test/hotspot/jtreg:tier4                      426   425     1     0 <<
>>> jtreg:test/jdk:tier4                               2891  2885     4     2 <<
>    jtreg:test/langtools:tier4                            0     0     0     0   
>    jtreg:test/jaxp:tier4                                 0     0     0     0   
> ==============================
> 
> real	64m13.994s
> user	1462m1.213s
> sys	39m38.032s
> 
> 
> There are interesting test failures on my machine, which I would address separately.

it looks like the results above do not include the headful tests did you filter them out?
>> jtreg:test/jdk:tier4                               2891  2885     4     2 <<

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PR: https://git.openjdk.java.net/jdk/pull/5357