RFR: 8328944: NMT reports "unknown" memory

Sat Nov 2 14:48:01 UTC 2024

We use mtNone value in several functions default parameters, which may show up in NMT reports.

We address this, by removing the default value and forcing, where possible, for the callers to declare NMT tag that reflects the usage.

Eventually the goal would be not to use mtNone anywhere, but we are not there quite yet.

TODO: update copyrights.

Testing: undergoing MARCH5 tier1-5 ...

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Commit messages:
 - do not allow default parameter for mtNone

Changes: https://git.openjdk.org/jdk/pull/21843/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21843&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328944
  Stats: 193 lines in 47 files changed: 23 ins; 1 del; 169 mod
  Patch: https://git.openjdk.org/jdk/pull/21843.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21843/head:pull/21843

PR: https://git.openjdk.org/jdk/pull/21843