RFR: 8344883: Force clients to explicitly pass mem_tag value, even if it is mtNone [v8]

[Gerard Ziemski]

> This is a follow-up to #21843. Here we are focusing on removing the mem tag paremeter with default value of mtNone, to force everyone to provide mem tag, if known.
> 
> I tried to fill in tag, when I was pretty certain that I had the right type.
> 
> At least one more follow-up will be needed after this, to change the remaining mtNone to valid values.

Gerard Ziemski has updated the pull request incrementally with one additional commit since the last revision:

  The real feedback from StefanK

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24282/files
  - new: https://git.openjdk.org/jdk/pull/24282/files/5de1d560..3bd03cbe

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24282&range=07
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24282&range=06-07

  Stats: 40 lines in 16 files changed: 0 ins; 2 del; 38 mod
  Patch: https://git.openjdk.org/jdk/pull/24282.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24282/head:pull/24282

PR: https://git.openjdk.org/jdk/pull/24282