Add garbage collection test

Author: vudaltsov

Zend/tests/new_obj_access_without_parentheses/gc.phpt

@@ -0,0 +1,26 @@
+--TEST--
+Object instantiated without parentheses is collected
+--FILE--
+<?php
+
+class A
+{
+    public function test(): void
+    {
+        echo 'called' . PHP_EOL;
+    }
+
+    public function __destruct()
+    {
+        echo 'collected' . PHP_EOL;
+    }
+}
+
+new A()->test();
+echo 'code after' . PHP_EOL;
+
+?>
+--EXPECT--
+called
+collected
+code after