add identifier for easier white listing

Author: ildyria

phpstan/Rules/DisallowedConstructs/DisallowedBooleanCastRule.php

@@ -23,7 +23,7 @@ public function getNodeType(): string
 	public function processNode(Node $node, Scope $scope): array
 	{
 		return [
-			RuleErrorBuilder::message('Cast to bool is forbidden.')->build(),
+			RuleErrorBuilder::message('Cast to bool is forbidden.')->identifier('casting.bool.forbidden')->build(),
 		];
 	}
 }

phpstan/Rules/DisallowedConstructs/DisallowedBooleanConversionRule.php

@@ -32,7 +32,7 @@ public function processNode(Node $node, Scope $scope): array
 			return [
 				RuleErrorBuilder::message(
 					'Conversion to boolean is forbidden.'
-				)->build(),
+				)->identifier('casting.bool.forbidden')->build(),
 			];
 		} else {
 			return [];