RFR: 8315273: (fs) Path.toRealPath(LinkOption.NOFOLLOW_LINKS) fails when "../../" follows a link (win)

[Brian Burkhalter]

Windows implementation of integrated pull request #15397. The test java/nio/file/Path/ToRealPath.java is also removed from the problem list,

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Commit messages:
 - 8315273: (fs) Path.toRealPath(LinkOption.NOFOLLOW_LINKS) fails when "../../" follows a link (win)

Changes: https://git.openjdk.org/jdk/pull/15525/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15525&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315273
  Stats: 148 lines in 2 files changed: 103 ins; 9 del; 36 mod
  Patch: https://git.openjdk.org/jdk/pull/15525.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15525/head:pull/15525

PR: https://git.openjdk.org/jdk/pull/15525