added regression test

Author: staabm

tests/PHPStan/Rules/DeadCode/UnreachableStatementRuleTest.php

@@ -241,6 +241,18 @@ public function testMultipleUnreachable(): void
 		]);
 	}
 
+	#[RequiresPhp('>= 8.1')]
+	public function testBug11909(): void
+	{
+		$this->treatPhpDocTypesAsCertain = false;
+		$this->analyse([__DIR__ . '/data/bug-11909.php'], [
+			[
+				'Unreachable statement - code above always terminates.',
+				10,
+			],
+		]);
+	}
+
 	#[RequiresPhp('>= 8.1')]
 	public function testBug13232a(): void
 	{

tests/PHPStan/Rules/DeadCode/data/bug-11909.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types = 1);
+
+namespace Bug11909;
+
+function doFoo(): never {
+	throw new LogicException("throws");
+}
+
+echo doFoo();
+echo "hello";