Restore comma at the end of the imports

Author: CC972

src/compiler/factory/nodeFactory.ts

@@ -471,7 +471,7 @@ import {
     VoidExpression,
     WhileStatement,
     WithStatement,
-    YieldExpression
+    YieldExpression,
 } from "../_namespaces/ts";
 
 let nextAutoGenerateId = 0;