Add another test case

Author: iluuu1994

ext/opcache/tests/jit/gh21264.phpt ext/opcache/tests/jit/gh21264-1.phptext/opcache/tests/jit/gh21264.phpt renamed to ext/opcache/tests/jit/gh21264-1.phpt

@@ -0,0 +1,31 @@
+--TEST--
+GH-21264: Missing reference unwrap for FE_FETCH_R in JIT
+--EXTENSIONS--
+opcache
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.jit=tracing
+--FILE--
+<?php
+
+class C {
+    public $prop = 0;
+}
+
+function test($array) {
+    $c = new C;
+    foreach ($array as $c->prop) {
+        $c->prop++;
+    }
+}
+
+$element = 0;
+$array = [&$element, &$element];
+test($array);
+test($array);
+var_dump($element);
+
+?>
+--EXPECT--
+int(0)