RFR: 8337563: NMT: rename MEMFLAGS to MemTag [v10]

[Gerard Ziemski]

On Thu, 12 Sep 2024 15:40:35 GMT, Gerard Ziemski <gziemski at openjdk.org> wrote:

>> Please review this cleanup, where we rename `MEMFLAGS` to `MemTag`.
>> 
>> `MEMFLAGS` implies that we can use more than one at the same time, but those are exclusive values, so `MemTag` is a more suitable name.
>> 
>> This fix also includes a cleanup of all the related function/template parameter names and local variable names.
>> 
>> Testing is pending...
>> 
>> Note: there is more history in old closed PRs [https://github.com/openjdk/jdk/pull/20497](https://github.com/openjdk/jdk/pull/20497) and [https://github.com/openjdk/jdk/pull/20472](https://github.com/openjdk/jdk/pull/20472)
>
> Gerard Ziemski has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Afshin's feedback, record_virtual_memory_type -> record_virtual_memory_tag
>  - Afshin's feedback

Johan's incremental feedback:

https://openjdk.github.io/cr/?repo=jdk&pr=20872&range=06-07

Afshin's incremental feedback:

https://openjdk.github.io/cr/?repo=jdk&pr=20872&range=07-08
https://openjdk.github.io/cr/?repo=jdk&pr=20872&range=08-09

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PR Comment: https://git.openjdk.org/jdk/pull/20872#issuecomment-2346643064