[12.x] Allow Container to build Migrator from class name (laravel#55501)

* allow building Migrator from class name

* bind Migrator

* remove unneeded change

* remove unneeded change

* Update MigrationServiceProvider.php

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: cosmastech

src/Illuminate/Database/MigrationServiceProvider.php

@@ -82,6 +82,8 @@ protected function registerMigrator()
 
             return new Migrator($repository, $app['db'], $app['files'], $app['events']);
         });
+
+        $this->app->bind(Migrator::class, fn ($app) => $app['migrator']);
     }
 
     /**
@@ -220,7 +222,7 @@ protected function registerMigrateStatusCommand()
     public function provides()
     {
         return array_merge([
-            'migrator', 'migration.repository', 'migration.creator',
+            'migrator', 'migration.repository', 'migration.creator', Migrator::class,
         ], array_values($this->commands));
     }
 }

tests/Integration/Database/MigrationServiceProviderTest.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Illuminate\Tests\Integration\Database;
+
+use Illuminate\Database\Migrations\Migrator;
+
+class MigrationServiceProviderTest extends DatabaseTestCase
+{
+    public function testContainerCanBuildMigrator()
+    {
+        $fromString = $this->app->make('migrator');
+        $fromClass = $this->app->make(Migrator::class);
+
+        $this->assertSame($fromString, $fromClass);
+    }
+}