Added test and possible fix for https://bugs.php.net/bug.php?id=67068

Zend/zend_closures.c

@@ -449,6 +449,7 @@ ZEND_API void zend_create_closure(zval *res, zend_function *func, zend_class_ent
 
 	closure->func = *func;
 	closure->func.common.prototype = NULL;
+	closure->func.common.fn_flags |= ZEND_ACC_CLOSURE;
 
 	if ((scope == NULL) && (this_ptr != NULL)) {
 		/* use dummy scope if we're binding an object without specifying a scope */

ext/reflection/tests/bug67068.phpt

@@ -0,0 +1,18 @@
+--TEST--
+Bug #67068 (ReflectionFunction::getClosure returns something that doesn't report as a closure)
+--FILE--
+<?php
+class MyClass {
+    public function method() {}
+}
+
+$object = new MyClass;
+$reflector = new \ReflectionMethod($object, 'method');
+$closure = $reflector->getClosure($object);
+
+$closureReflector = new \ReflectionFunction($closure);
+
+var_dump($closureReflector->isClosure());
+?>
+--EXPECT--
+bool(true)