RFR: 8327994: Update code gen in CallGeneratorHelper [v2]

[Maurizio Cimadamore]

On Sat, 16 Mar 2024 22:34:25 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> Update the code gen code in CallGeneratorHelper to reflect the latest state of the libTest(Downcall/Upcall)(Stack).c and shared.h files.
>> 
>> - The previous code wanted users to pipe stdout into a file. But, since we have 5 files that need to be created, and the names of those files is important too, I've changed the script to write to those files directly instead.
>> - I moved the definition of `S_FFFF` to libVarArgs.c where it's used, as it's not actually generated by CallGeneratorHelper.
>> - GitHub doesn't render the changes to some of the files, but those files only contain either white space changes (some missing spaces after `,`), and copyright header updates.
>
> Jorn Vernee has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Delete extra space
>   
>   Co-authored-by: Andrey Turbanov <turbanoff at gmail.com>

Nice cleanup. No changes in libTestDowncallStack.c (not even minor ones) ?

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

Marked as reviewed by mcimadamore (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18269#pullrequestreview-1949642772