webpack: add missing uglifyjs plugin typings (#14177)

webpack/index.d.ts

@@ -472,6 +472,17 @@ declare namespace webpack {
         apply(thisArg: Webpack, ...args: any[]): void;
     }
 
+    type UglifyCommentFunction = (astNode: any, comment: any) => boolean
+
+    interface UglifyPluginOptions extends UglifyJS.MinifyOptions {
+        beautify?: boolean;
+        comments?: boolean | RegExp | UglifyCommentFunction;
+        sourceMap?: boolean;
+        test?: Condition | Condition[];
+        include?: Condition | Condition[];
+        exclude?: Condition | Condition[];
+    }
+
     interface Webpack {
         (config: Configuration, callback?: compiler.CompilerCallback): compiler.Compiler;
         /**
@@ -1020,7 +1031,7 @@ declare namespace webpack {
             new (preferEntry: boolean): Plugin;
         }
         interface UglifyJsPluginStatic {
-            new (options?: UglifyJS.MinifyOptions): Plugin;
+            new (options?: UglifyPluginOptions): Plugin;
         }
         interface CommonsChunkPluginStatic {
             new (chunkName: string, filenames?: string | string[]): Plugin;

webpack/webpack-tests.ts

@@ -288,11 +288,24 @@ plugin = new webpack.optimize.UglifyJsPlugin({
         warnings: false
     }
 });
+plugin = new webpack.optimize.UglifyJsPlugin({
+  sourceMap: false,
+  comments: true,
+  beautify: true,
+  test: 'foo',
+  exclude: /node_modules/,
+  include: 'test'
+});
 plugin = new webpack.optimize.UglifyJsPlugin({
     mangle: {
         except: ['$super', '$', 'exports', 'require']
     }
 });
+plugin = new webpack.optimize.UglifyJsPlugin({
+  comments: function(astNode: any, comment: any) {
+    return false;
+  }
+});
 plugin = new webpack.optimize.CommonsChunkPlugin(options);
 plugin = new CommonsChunkPlugin({
     name: "commons",