upgrade

vendor/doctrine/migrations/lib/Doctrine/DBAL/Migrations/Events.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Doctrine\DBAL\Migrations;
+
+final class Events
+{
+    /**
+     * Private constructor. This class cannot be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    const onMigrationsMigrating        = 'onMigrationsMigrating';
+    const onMigrationsMigrated         = 'onMigrationsMigrated';
+    const onMigrationsVersionExecuting = 'onMigrationsVersionExecuting';
+    const onMigrationsVersionExecuted  = 'onMigrationsVersionExecuted';
+    const onMigrationsVersionSkipped   = 'onMigrationsVersionSkipped';
+}