RFR: 8344734: Rename memoryFileTracker to nativeMemoryFileTracker [v4]

[Anton Artemov]

> Renamed memoryFileTracker to nativeMemoryFileTracker as requested in the issue description, as it makes a better acronym.

Anton Artemov has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:

 - 8344734: resolved merge conflicts
 - 8344734: renamed memoryFileTracker to nativeMemoryFileTracker

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Changes: https://git.openjdk.org/jdk/pull/24579/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24579&range=03
  Stats: 509 lines in 12 files changed: 241 ins; 241 del; 27 mod
  Patch: https://git.openjdk.org/jdk/pull/24579.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24579/head:pull/24579

PR: https://git.openjdk.org/jdk/pull/24579