final touch; fix phpstan

Author: samsonasik

src/Analyser/NodeScopeResolver.php

@@ -6228,7 +6228,7 @@ private function getNextUnreachableStatements(array $nodes, bool $earlyBinding):
 		$stmts = [];
 		$isPassedUnreachableStatement = false;
 		foreach ($nodes as $node) {
-			if ($isPassedUnreachableStatement) {
+			if ($isPassedUnreachableStatement && $node instanceof Node\Stmt) {
 				$stmts[] = $node;
 				continue;
 			}