fix phpstan

Author: samsonasik

src/Analyser/NodeScopeResolver.php

@@ -326,7 +326,9 @@ public function processNodes(
 				$nextStatements[] = $nextStmt;
 			}
 
-			$nodeCallback(new UnreachableStatementNode($unreachableStatement, $nextStatements), $scope);
+			if ($unreachableStatement instanceof Node\Stmt) {
+				$nodeCallback(new UnreachableStatementNode($unreachableStatement, $nextStatements), $scope);
+			}
 		}
 	}
 
@@ -431,7 +433,9 @@ public function processStmtNodes(
 				$nextStatements[] = $nextStmt;
 			}
 
-			$nodeCallback(new UnreachableStatementNode($unreachableStatement, $nextStatements), $scope);
+			if ($unreachableStatement instanceof Node\Stmt) {
+				$nodeCallback(new UnreachableStatementNode($unreachableStatement, $nextStatements), $scope);
+			}
 		}
 
 		$statementResult = new StatementResult($scope, $hasYield, $alreadyTerminated, $exitPoints, $throwPoints, $impurePoints);