[jdk21u-dev] RFR: 8315485: (fs) Move java/nio/file/Path/Misc.java tests into java/nio/file/Path/PathOps.java

[Goetz Lindenmaier]

I backport this for parity with 21.0.4-oracle.

I resolved the first chunk.

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Commit messages:
 - Backport 8dfde28b289cbb53173f0ab759156088bbaf74f1

Changes: https://git.openjdk.org/jdk21u-dev/pull/422/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=422&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315485
  Stats: 149 lines in 2 files changed: 59 ins; 88 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/422.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/422/head:pull/422

PR: https://git.openjdk.org/jdk21u-dev/pull/422