FileSystemMoveEvent.isDirectory is True for Link

[sgrekhov]

The code below creates temp directory, file inside it and the link to this file. Then link is renamed and FileSystemMoveEvent is fired. But FileSystemMoveEvent.isDirectory has wrong value (true). No issue when renaming File or Directory

import "dart:io";
import "dart:async";

main() {
  Directory dir = new Directory(Directory.systemTemp.path + Platform.pathSeparator + "testDir");
  dir.createSync();
  File target = new File(dir.path + Platform.pathSeparator + "testFile.tmp");
  target.createSync();
  StreamSubscription s = dir.watch().listen((FileSystemEvent event) {
    if (event is FileSystemMoveEvent) {
      print(event); // FileSystemMoveEvent('C:\Users\sgrekhov\AppData\Local\Temp\testDir\testLink1.lnk', 'C:\Users\sgrekhov\AppData\Local\Temp\testDir\testLink2.lnk')
      print(event.isDirectory); // true
    }
  });

// Create link to the target file
  Link link = new Link(dir.path + Platform.pathSeparator + "testLink1.lnk");
  link.createSync(target.path);
  link.renameSync(dir.path + Platform.pathSeparator + "testLink2.lnk");

// Wait for 1 second and then cleanup
  new Future.delayed(new Duration(seconds: 1), () {
    s.cancel().then((_) {
      dir.delete(recursive: true);
    });
  });
}

May be this is related with #30359.
Tested on Dart VM version: 1.25.0-dev.16.0 (Tue Sep 05 08:14:58 2017) on "windows_x64"