Rename Node classes related to variables

tests/Node/Expression/Variable/AssignContextVariableTest.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Twig\Tests\Node\Expression;
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Twig\Node\Expression\Variable\AssignContextVariable;
+use Twig\Test\NodeTestCase;
+
+class AssignContextVariableTest extends NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new AssignContextVariable('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public static function provideTests(): iterable
+    {
+        $node = new AssignContextVariable('foo', 1);
+
+        return [
+            [$node, '$context["foo"]'],
+        ];
+    }
+}