RFR: 7903774: make all tests combinations printing nicer and/or configurable [v9]

[Jiří Vaněk]

> This is still WIP, but already on row what [CODETOOLS-7903774](https://bugs.openjdk.org/browse/CODETOOLS-7903774) suggested.
> 
> It will be finished once all desired output combinations are included, but already now is doing the usage of listing much more comfortable and code readable.
> 
> From:
> 
> `TESTS` - as introduced by https://github.com/openjdk/jcstress/pull/149
> `COMBINATIONS` - as introduced in https://github.com/openjdk/jcstress/pull/149 verbose mode (thus surpassing the `-v` impact
> `ALL_TESTS` - all tests as it was before https://github.com/openjdk/jcstress/pull/149
> `COMBINATIONS_GROUPED ` - as suggested in https://github.com/openjdk/jcstress/pull/149#discussion_r1668678910
> `COMBINATIONS_JSON` same as combinations, but a valid json
> `COMBINATIONS_GROUPS` same as COMBINATIONS_GROUPED only instead of enumeration in each group, only count of members will be printed 
> 
> 
> * TESTS are already implemented as ALL_MATCHING
> * COMBINATIONS as ALL_MATCHING_COMBINATIONS
> * ALL_TESTS as ALL
> 
> COMBINATIONS_GROUPED, and COMBINATIONS_GROUPS are under development.
> The _JSON variants are tobe decided, but ability to JQL it sounds nice.
> 
> Suggestion to better names welcomed.

Jiří Vaněk has updated the pull request incrementally with two additional commits since the last revision:

 - Implemented proper json listings
   
   - id can be used both flatten (so equal to plaintext) or properly
   strcutured for JQ (default)
   - listing can be redirecd to stderr to use with `jq` directly
 - ALL now corectly return all tests

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

Changes:
  - all: https://git.openjdk.org/jcstress/pull/153/files
  - new: https://git.openjdk.org/jcstress/pull/153/files/12cad1b8..b8d0209d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jcstress&pr=153&range=08
 - incr: https://webrevs.openjdk.org/?repo=jcstress&pr=153&range=07-08

  Stats: 196 lines in 4 files changed: 133 ins; 3 del; 60 mod
  Patch: https://git.openjdk.org/jcstress/pull/153.diff
  Fetch: git fetch https://git.openjdk.org/jcstress.git pull/153/head:pull/153

PR: https://git.openjdk.org/jcstress/pull/153