RFR: Loom test groups for development/porting use [v3]

[Alan Bateman]

On Tue, 12 Oct 2021 08:19:22 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
>> 
>> Sample run:
>> 
>> 
>> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
>> ...
>> ==============================
>> Test summary
>> ==============================
>>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>    jtreg:test/hotspot/jtreg:hotspot_loom                63    63     0     0   
>>    jtreg:test/jdk:jdk_loom                             187   187     0     0   
>> ==============================
>> TEST SUCCESS
>> 
>> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
>> 
>> real	6m37.938s
>> user	54m13.043s
>> sys	2m12.437s
>
> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   More reviews

Marked as reviewed by alanb (Committer).

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PR: https://git.openjdk.java.net/loom/pull/74