Add test

Author: arnaud-lb

Zend/tests/short_closures/ast_export.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Short closures: ast export
+--INI--
+zend.assertions=1
+--FILE--
+<?php
+
+$a = 1;
+
+assert(#[Attr] fn(DateTime $dt) use($a): DateTime {
+    return 1;
+} && false);
+
+--EXPECTF--
+Fatal error: Uncaught AssertionError: assert(#[Attr] fn(DateTime $dt) use($a): DateTime {
+    return 1;
+} && false) in %s:%d
+Stack trace:
+#0 %s(%d): assert(false, 'assert(#[Attr] ...')
+#1 {main}
+  thrown in %s on line %d