RFR: 8366716: Move SmapsParser from runtime/os/TestTracePageSizes.java into testlib [v5]

[Stefan Johansson]

On Mon, 13 Oct 2025 14:18:43 GMT, jonghoonpark <duke at openjdk.org> wrote:

>> related jira issue: https://bugs.openjdk.org/browse/JDK-8366716
>> 
>> ---
>> 
>> Following the direction outlined in the issue description,
>> I've extracted the common parts from `TestTracePageSizes` and `TestTransparentHugePagesHeap` to implement the `SmapsParser` test library.
>> 
>> I've confirmed that it works without issues in my local tests.
>> 
>> Reviews and feedback are welcome.
>
> jonghoonpark has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - remove whitespace
>    
>    Signed-off-by: jonghoonpark <dev at jonghoonpark.com>
>  - Apply suggestion from @kstefanj
>    
>    Co-authored-by: Stefan Johansson <54407259+kstefanj at users.noreply.github.com>

Marked as reviewed by sjohanss (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27273#pullrequestreview-3334471081