RFR: 8277463: JFileChooser with Metal L&F doesn't show non-canonical UNC path in - Look in [v3]

[Masanori Yano]

> I would like to fix the bug reported in JDK-8277463.
> 
> As reporter's investigation, ShellFolder.getNormalizedFile() returns incorrect value for non-canonical Windows UNC path. getNormalizedFile() is used for symbolic link path, but Windows environment does not handle symbolic link. And, getCanonicalFile() returns correct path for a directory link in Windows which is made with `mklink` command. So getNormalizedFile() should perform to return getCanonicalFile() like WindowsFileChooserUI.addItem() at Windows environment.

Masanori Yano has updated the pull request incrementally with one additional commit since the last revision:

  8277463: JFileChooser with Metal L&F doesn't show non-canonical UNC path in - Look in

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6796/files
  - new: https://git.openjdk.java.net/jdk/pull/6796/files/3e163ff9..5a164033

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6796&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6796&range=01-02

  Stats: 37 lines in 1 file changed: 0 ins; 2 del; 35 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6796.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6796/head:pull/6796

PR: https://git.openjdk.java.net/jdk/pull/6796