RFR: 8368124: Show useful thread names in ASAN reports [v6]

[Thomas Stuefe]

On Thu, 25 Sep 2025 02:43:41 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   some more tests
>
> Simplified spot-fix looks good - thanks.
> 
> You missed my follow up re the redundancy of `Linux::_pthread_setname_np`.

@dholmes-ora Oh right, I missed that. I removed pthread_setname_np and verified that we still get thread names in /proc/<pid>/task, gdb and ASAN.

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PR Comment: https://git.openjdk.org/jdk/pull/27395#issuecomment-3332291693