Add AnalyserIntegrationTest for bug-14596 crash

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

Author: phpstan-bot

tests/PHPStan/Analyser/AnalyserIntegrationTest.php

@@ -1563,6 +1563,13 @@ public function testBug14550(): void
 		$this->assertNotEmpty($errors);
 	}
 
+	public function testBug14596(): void
+	{
+		// crash
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-14596.php');
+		$this->assertNotEmpty($errors);
+	}
+
 	/**
 	 * @param string[]|null $allAnalysedFiles
 	 * @return list<Error>

tests/PHPStan/Analyser/data/bug-14596.php

@@ -0,0 +1,5 @@
+<?php
+
+namespace Bug14596;
+
+\PHPStan\dumpType(1, 2, 3, d: 'foo', 5);