RFR: 8337217: Port VirtualMemoryTracker to use VMATree [v30]

[Afshin Zafari]

On Mon, 24 Feb 2025 12:45:51 GMT, Afshin Zafari <azafari at openjdk.org> wrote:

>> - `VMATree` is used instead of `SortedLinkList` in new class `VirtualMemoryTracker`.
>>  -  A wrapper/helper `RegionTree` is made around VMATree to make some calls easier.
>>  - `find_reserved_region()` is used in 4 cases, it will be removed in further PRs.
>>  - All tier1 tests pass except this https://bugs.openjdk.org/browse/JDK-8335167.
>
> Afshin Zafari has updated the pull request incrementally with one additional commit since the last revision:
> 
>   test file got back, fixed coding style

Description is up to date now.
Other related PRs are:
https://github.com/openjdk/jdk/pull/23769
https://github.com/openjdk/jdk/pull/23770
https://github.com/openjdk/jdk/pull/23771

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

PR Comment: https://git.openjdk.org/jdk/pull/20425#issuecomment-2681581172