RFR: 8345700: tier{1, 2, 3}_compiler don't cover all compiler tests [v2]

[Leonid Mesnik]

> Hi, 
> could you please review following fix that update
> tier3_compiler test group
> so :hotspot_compiler is always a sum of
> tier1_compiler, tier2_compiler, tier3_compiler
> This is natural splitting of tests into 3 layers. 
> The fix is done to execution :hotspot_compiler into 3 tiers with corresponding group names.
> 
> New tests in tier3:
> 9 tests in compiler/ccp/
> 22 test in ompiler/predicates/
> 8 tests in compiler/splitif/
> So the number is not increased significantly.
> 
> The new group
> ` tier2_ctw`
> was introduced for ctw testing. 
> It is different from tests in hotspot_compiler, and usually executed separately, So I added it as separate sub-test of tier2.
> 
> I moved ctw from tier3 to tier2 to correspond current tiers of Hotspot CI in our system. 
> If anyone thinks it should be part of tier3 - we can discuss in PR comments how do deal with it.
> 
> @shipilev, could you please take a look and check if these changes are ok to you since you the author of tier2/tier3.

Leonid Mesnik has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' of https://github.com/openjdk/jdk into 8345700
 - 8345700: tier{1,2,3}_compiler doesn't cover all compiler tests

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22614/files
  - new: https://git.openjdk.org/jdk/pull/22614/files/3a6cf638..27d324cd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22614&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22614&range=00-01

  Stats: 2447 lines in 1094 files changed: 940 ins; 330 del; 1177 mod
  Patch: https://git.openjdk.org/jdk/pull/22614.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22614/head:pull/22614

PR: https://git.openjdk.org/jdk/pull/22614