RFR: 8302267: [jittester] Improve separation of test generation and execution [v2]

[Leonid Mesnik]

On Wed, 22 Feb 2023 17:43:23 GMT, Evgeny Nikitin <enikitin at openjdk.org> wrote:

>> Please review a set of improvements that should improve working with other fuzzing generators and usage of JitTesterDriver with tests generated not by the JITTester:
>> 
>> - Provide better separation of individual test generation from java file writing, compiling, executing, etc.;
>> - Introduce distinct Phases of the generation process (Generation, Compilation, GoldRun and VerificationRun);
>> - Extract JItTesterDriver headers generation so that it would be possible to provide other header generators;
>> - Introduce error tolerance to not get distracted by OOMEs, intrinsics missing in the compiled code, etc.;
>> - Make it possible to specify time limit for an individual test generation;
>> - Give better control over temp/workdir creation and cleaning;
>> - Unify external process running;
>> - Introduce UTF-8 support in external processes' output and human-readable escaping of it;
>
> Evgeny Nikitin has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Ignore large files

Marked as reviewed by lmesnik (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/12527