Fix bug in zend_test assuming null not being the first type

(I agree that null should come last, but then it should rather throw with a proper message than emit an undefined key warning.)

Signed-off-by: Bob Weinand <bobwei9@hotmail.com>

build/gen_stub.php

@@ -650,11 +650,13 @@ class Type {
 
     public function getWithoutNull(): Type {
         return new Type(
-            array_filter(
-                $this->types,
-                function(SimpleType $type) {
-                    return !$type->isNull();
-                }
+            array_values(
+                array_filter(
+                    $this->types,
+                    function(SimpleType $type) {
+                        return !$type->isNull();
+                    }
+                )
             ),
             false
         );

ext/zend_test/test.stub.php

@@ -119,7 +119,7 @@ namespace {
 
     function zend_test_array_return(): array {}
 
-    function zend_test_nullable_array_return(): ?array {}
+    function zend_test_nullable_array_return(): null|array {}
 
     function zend_test_void_return(): void {}
 

ext/zend_test/test_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 8a5914eead09c2a85fd7d53d63c9597dfb3d0c30 */
+ * Stub hash: 3e2308593cea5289709dcfb1c9ee598de945d2e2 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_zend_test_array_return, 0, 0, IS_ARRAY, 0)
 ZEND_END_ARG_INFO()