Add rule test for bug 8056 to verify no false positive "Empty array passed to foreach"

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

tests/PHPStan/Rules/Arrays/DeadForeachRuleTest.php

@@ -55,4 +55,9 @@ public function testBug2457(): void
 		$this->analyse([__DIR__ . '/data/bug-2457.php'], []);
 	}
 
+	public function testBug8056(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-8056.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Arrays/data/bug-8056.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types = 1);
+
+namespace Bug8056Rule;
+
+$array = [];
+$tmp = &$array;
+$tmp[] = 'foo';
+
+foreach ($array as $i) {
+
+}