fix: change Compiler to ICompiler

- Updates the WebpackDevMiddleware function to accept MultiCompilers
- Updates deprecated names

Closes #17608

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

@@ -4,12 +4,12 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 import { NextHandleFunction } from 'connect';
-import { compiler } from 'webpack';
+import * as webpack from 'webpack';
 
 export = WebpackDevMiddleware;
 
 declare function WebpackDevMiddleware(
-	compiler: compiler.Compiler,
+	compiler: webpack.ICompiler,
 	options?: WebpackDevMiddleware.Options
 ): WebpackDevMiddleware.WebpackDevMiddleware & NextHandleFunction;
 
@@ -18,13 +18,13 @@ declare namespace WebpackDevMiddleware {
 		noInfo?: boolean;
 		quiet?: boolean;
 		lazy?: boolean;
-		watchOptions?: compiler.WatchOptions;
+		watchOptions?: webpack.WatchOptions;
 		publicPath: string;
 		index?: string;
 		headers?: {
 			[name: string]: string;
 		};
-		stats?: compiler.StatsToStringOptions;
+		stats?: webpack.Stats.ToStringOptions;
 		reporter?: Reporter | null;
 		serverSideRender?: boolean;
 
@@ -36,7 +36,7 @@ declare namespace WebpackDevMiddleware {
 
 	interface ReporterOptions {
 		state: boolean;
-		stats: compiler.Stats;
+		stats: webpack.Stats;
 		options: Options;
 	}
 
@@ -46,7 +46,7 @@ declare namespace WebpackDevMiddleware {
 
 	interface WebpackDevMiddleware {
 		close(callback?: () => void): void;
-		invalidate(callback?: (stats: compiler.Stats) => void): void;
-		waitUntilValid(callback?: (stats: compiler.Stats) => void): void;
+		invalidate(callback?: (stats: webpack.Stats) => void): void;
+		waitUntilValid(callback?: (stats: webpack.Stats) => void): void;
 	}
 }