RFR: 8263898: (fs) Files.newOutputStream on the "NUL" special device throws FileSystemException: "nul: Incorrect function" (win) [v6]

[Brian Burkhalter]

> This request proposes to change the native method `WindowsNativeDispatcher.SetEndOfFile()` to succeed even if the Windows function `SetEndOfFile()` returns zero if `GetFileSizeEx()` called on the handle succeeds and reveals a file size of zero.

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

  8263898: Improve and clean up test

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3183/files
  - new: https://git.openjdk.java.net/jdk/pull/3183/files/f799631d..7f356e97

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3183&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3183&range=04-05

  Stats: 43 lines in 1 file changed: 35 ins; 5 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3183.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3183/head:pull/3183

PR: https://git.openjdk.java.net/jdk/pull/3183