RFR: 8370254: Add VM_MEMORY_JAVA mmap tag to MacOS mmap calls [v6]

[Nityanand Rai]

On Wed, 5 Nov 2025 14:43:39 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

> > I think the changes are minor to assert the tagging on allocation while we are doing that and do not require extra tests, please let me know if you still think otherwise.
> 
> I think otherwise. Please put the test somewhere else.

Done

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PR Comment: https://git.openjdk.org/jdk/pull/27868#issuecomment-3500704669