Merge pull request #28362 from damian-codilime/patch-1

[webpack-dev-server] Updated stats interface to match webpack interface

types/webpack-dev-server/index.d.ts

@@ -1,4 +1,4 @@
-// Type definitions for webpack-dev-server 2.9
+// Type definitions for webpack-dev-server 3.1
 // Project: https://github.com/webpack/webpack-dev-server
 // Definitions by: maestroh <https://github.com/maestroh>
 //                 Dave Parslow <https://github.com/daveparslow>
@@ -158,7 +158,7 @@ declare namespace WebpackDevServer {
          * This option lets you precisely control what bundle information gets displayed.
          * This can be a nice middle ground if you want some bundle information, but not all of it.
          */
-        stats?: string | webpack.Stats;
+        stats?: string | webpack.Options.Stats;
         /** This option lets the browser open with your local IP. */
         useLocalIp?: boolean;
         /** Tell the server to watch the files served by the devServer.contentBase option. File changes will trigger a full page reload. */