[jdk8u-dev] RFR: 8170464: Remove shell script from compiler/c2/cr7005594/Test7005594.java [v3]

[Andrew John Hughes]

> This backport converts `Test7005594.java` to be pure Java rather than a mix of Java and shell, which is currently causing test failures.
> 
> The patch is not clean due to a couple of moves and minor changes now made redundant by the removal of the script.  The final Java test file matches that in 11u.
> 
> 1.  File move from [8062854](https://bugs.openjdk.org/browse/JDK-8062854): "move compiler jtreg test to corresponding subfolders and use those in TEST.groups"
> 2. File move from [8132919](https://bugs.openjdk.org/browse/JDK-8132919): "Put compiler tests in packages"
> 3. File  move from [8187443](https://bugs.openjdk.org/browse/JDK-8187443): "Forest Consolidation: Move files to unified layout"
> 4. Changes to how Java was invoked in the script in [8135068](https://bugs.openjdk.org/browse/JDK-8135068): "Extract method matchers from CompilerOracle"
> 5. Changes to how memory was calculated in the script in [8376338](https://bugs.openjdk.org/browse/JDK-8376338): "Test7005594.sh fails when given a memory value with decimals"
> 
> Created on top of pr/742 to get a Mac run

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 10 commits:

 - Merge remote-tracking branch 'dev/master' into JDK-8170464
 - Backport d652c70de6425a67907e00e75521588ec4a2e940
 - Merge remote-tracking branch 'dev/master' into JDK-8374948
 - Revert LOG_LEVEL=debug additions
 - 8374948: [8u] saproc & jsig builds add duplicate linker flags on Darwin/MacOS
 - Backport 1b0f612e5e08cfa1581cf22433b36b5f075c0f23
 - Print spec files on all POSIX platforms
 - Add LOG_LEVEL=debug to all GHA builds
 - Whitespace cleanup
 - 8374899: [8u] Fully handle clang as the toolchain in flags.m4

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

Changes: https://git.openjdk.org/jdk8u-dev/pull/755/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=755&range=02
  Stats: 220 lines in 3 files changed: 53 ins; 167 del; 0 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/755.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/755/head:pull/755

PR: https://git.openjdk.org/jdk8u-dev/pull/755