added regression test

Author: staabm

tests/PHPStan/Rules/DeadCode/UnreachableStatementRuleTest.php

@@ -252,6 +252,18 @@ 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";