fix(typings): Remove an unknown type reference from cache API mocks, and properly export the type for BroccoliPlugin to allow type definition generation.

Author: alxhub

service-worker/worker/src/generator/cli-sw.ts

@@ -7,14 +7,16 @@ const fse           = require('fs-extra');
 const path          = require('path');
 const MANIFEST_NAME = 'ngsw-manifest.json';
 const WORKER_NAME   = 'worker.js';
-export const BroccoliPlugin: BroccoliPluginConstructor = require('broccoli-caching-writer');
 
 export interface BroccoliPluginConstructor {
   new(inputNodes: any[], options?: any): BroccoliPluginConstructor;
   inputPaths: string[];
   outputPath: string;
 }
 
+export type BroccoliPlugin = BroccoliPluginConstructor;
+export const BroccoliPlugin: BroccoliPluginConstructor = require('broccoli-caching-writer');
+
 class BroccoliSourceResolver implements SourceResolver {
   constructor(public inputPaths:string[]) {}
   resolve(sources:string[]): Promise<Object> {

service-worker/worker/src/testing/mock_cache.ts

@@ -166,7 +166,7 @@ export class MockRequest extends MockBody implements Request {
   cache: RequestCache = "default";
 
   headers: any;
-  redirect: RequestRedirect;
+  redirect: any;
   get body(): any {
     return this;
   }