Fix uncaught exceptions during cleanup

XP xar support holds on to file handles

Author: thekid

src/test/php/lang/ast/unittest/cli/ToArchiveTest.class.php

@@ -1,6 +1,6 @@
 <?php namespace lang\ast\unittest\cli;
 
-use io\{File, Folder};
+use io\{File, Folder, IOException};
 use lang\Environment;
 use lang\archive\ArchiveClassLoader;
 use test\{After, Assert, Before, Test};
@@ -22,7 +22,11 @@ public function folder() {
   #[After]
   public function cleanup() {
     $this->archive->isOpen() && $this->archive->close();
-    $this->folder->unlink();
+    try {
+      $this->folder->unlink();
+    } catch (IOException $ignored) {
+      // XP xar support holds on to file handles
+    }
   }
 
   #[Test]