RFR: 8356493: (fs) SecureDirectoryStream missing some capabilities [v3]

[Brian Burkhalter]

> Add several methods to `java.nio.file.SecureDirectoryStream`.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8356493: make createFile accept LinkOption

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26950/files
  - new: https://git.openjdk.org/jdk/pull/26950/files/b59c3f6c..77df1437

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26950&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26950&range=01-02

  Stats: 26 lines in 6 files changed: 12 ins; 4 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/26950.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26950/head:pull/26950

PR: https://git.openjdk.org/jdk/pull/26950