RFR: 8323515: Create test alias "all" for all test roots [v2]

[Alan Bateman]

On Tue, 16 Jan 2024 08:47:38 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> test/jdk/TEST.groups line 28:
>> 
>>> 26: #
>>> 27: 
>>> 28: all = \
>> 
>> Why no `jdk_all` definition in this case?
>
> Tried not to introduce new `*_all` groups here. `jdk_all` would be the same as `jdk:all`, TBH. But we still can do it for symmetry reasons, see new commit.

"all" looks okay but the comment "Catch-all" suggests something else, shouldn't be "All tests"?

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PR Review Comment: https://git.openjdk.org/jdk/pull/17422#discussion_r1453103766