Upgrade Dead Code Detector to 0.15

Author: janedbal

build/phpstan.neon

@@ -90,6 +90,12 @@ parameters:
 			paths:
 				- ../tests/PHPStan/Fixture
 			reportUnmatched: false # constants on enums, not reported on PHP8-
+		-
+			identifier: shipmonk.deadEnumCase
+			paths:
+				- ../tests/PHPStan/Fixture
+		-
+			rawMessage: 'Property PHPStan\Command\CommandHelper::$reservedMemory is never read' # intentional
 		-
 			message: '''
 				#^Access to constant on deprecated class DeprecatedAnnotations\\DeprecatedFoo\:

composer.json

@@ -66,7 +66,7 @@
 		"phpstan/phpstan-strict-rules": "^2.0",
 		"phpunit/phpunit": "^11.5.23",
 		"shipmonk/composer-dependency-analyser": "^1.5",
-		"shipmonk/dead-code-detector": "^0.14.0",
+		"shipmonk/dead-code-detector": "^0.15.0",
 		"shipmonk/name-collision-detector": "^2.0"
 	},
 	"config": {

src/Internal/DirectoryCreatorException.php

@@ -10,7 +10,7 @@
 final class DirectoryCreatorException extends Exception
 {
 
-	public function __construct(public readonly string $directory)
+	public function __construct(string $directory)
 	{
 		$error = error_get_last();