Fixes after adding tests

Author: Girgias

Zend/zend_execute_API.c

@@ -1134,8 +1134,10 @@ ZEND_API zend_result zend_call_method_if_exists(
 	zend_function *fn = zend_hash_find_ptr_lc(&ce->function_table, method_name);
 	bool is_trampoline = false;
 
-	if (UNEXPECTED(fn == NULL)) {
-		/* We don't have a trampoline */
+	/* Can only call methods that exist (regardless of them being static) and are public */
+	if (UNEXPECTED(fn == NULL || (fn->common.fn_flags & ZEND_ACC_PUBLIC) == 0)) {
+		/* Unless they have a trampoline (but not a static one) which we can use */
+		// TODO: Should static trampolines be allowed?
 		if (!ce->__call) {
 			ZVAL_UNDEF(retval);
 			return FAILURE;