refactor(router): switching to relative imports within the router package

This commit updates scripts within `packages/router` to relative imports as a prep work to the upcoming infra updates.

Author: AndrewKushnir

goldens/public-api/router/testing/index.api.md

@@ -4,13 +4,29 @@
 
 ```ts
 
+import { AfterContentInit } from '@angular/core';
 import * as _angular_router from '@angular/router';
+import { ChangeDetectorRef } from '@angular/core';
 import { ComponentFixture } from '@angular/core/testing';
+import { ComponentRef } from '@angular/core';
 import { DebugElement } from '@angular/core';
-import { ExtraOptions } from '@angular/router';
+import { ElementRef } from '@angular/core';
+import { EnvironmentInjector } from '@angular/core';
+import { EnvironmentProviders } from '@angular/core';
+import { EventEmitter } from '@angular/core';
 import * as i0 from '@angular/core';
+import { LocationStrategy } from '@angular/common';
 import { ModuleWithProviders } from '@angular/core';
-import { Routes } from '@angular/router';
+import { NgModuleFactory } from '@angular/core';
+import { Observable } from 'rxjs';
+import { OnChanges } from '@angular/core';
+import { OnDestroy } from '@angular/core';
+import { OnInit } from '@angular/core';
+import { Provider } from '@angular/core';
+import { ProviderToken } from '@angular/core';
+import { QueryList } from '@angular/core';
+import { Renderer2 } from '@angular/core';
+import { SimpleChanges } from '@angular/core';
 import { Type } from '@angular/core';
 import { WritableSignal } from '@angular/core';
 
@@ -36,7 +52,7 @@ export class RouterTestingModule {
     // (undocumented)
     static ɵinj: i0.ɵɵInjectorDeclaration<RouterTestingModule>;
     // (undocumented)
-    static ɵmod: i0.ɵɵNgModuleDeclaration<RouterTestingModule, never, never, [typeof _angular_router.RouterModule]>;
+    static ɵmod: i0.ɵɵNgModuleDeclaration<RouterTestingModule, never, never, [typeof RouterModule]>;
 }
 
 // (No @packageDocumentation comment for this package)

packages/router/test/bootstrap.spec.ts

@@ -31,7 +31,7 @@ import {
   RouterModule,
   RouterOutlet,
   withEnabledBlockingInitialNavigation,
-} from '@angular/router';
+} from '../index';
 
 // This is needed, because all files under `packages/` are compiled together as part of the
 // [legacy-unit-tests-saucelabs][1] CI job, including the `lib.webworker.d.ts` typings brought in by

packages/router/test/computed_state_restoration.spec.ts

@@ -11,7 +11,7 @@ import {provideLocationMocks, SpyLocation} from '@angular/common/testing';
 import {Component, Injectable, NgModule, Type} from '@angular/core';
 import {ComponentFixture, fakeAsync, TestBed, tick} from '@angular/core/testing';
 import {expect} from '@angular/platform-browser/testing/src/matchers';
-import {Router, RouterModule, RouterOutlet, UrlTree, withRouterConfig} from '@angular/router';
+import {Router, RouterModule, RouterOutlet, UrlTree, withRouterConfig} from '../index';
 import {EMPTY, of} from 'rxjs';
 
 import {provideRouter} from '../src/provide_router';

packages/router/test/default_export_routes.ts

@@ -7,7 +7,7 @@
  */
 
 import {Component} from '@angular/core';
-import {Routes} from '@angular/router';
+import {Routes} from '../index';
 
 @Component({
   template: 'default exported',

packages/router/test/directives/router_outlet.spec.ts

@@ -24,8 +24,8 @@ import {
   RouterOutlet,
   withComponentInputBinding,
   ROUTER_OUTLET_DATA,
-} from '@angular/router/src';
-import {RouterTestingHarness} from '@angular/router/testing';
+} from '../../index';
+import {RouterTestingHarness} from '../../testing';
 import {InjectionToken} from '../../../core/src/di';
 
 describe('router outlet name', () => {

packages/router/test/integration/duplicate_in_flight_navigations.spec.ts

@@ -17,7 +17,7 @@ import {
   withRouterConfig,
   NavigationStart,
   GuardsCheckEnd,
-} from '@angular/router/src';
+} from '../../index';
 import {createRoot, SimpleCmp, advance, RootCmp, BlankCmp} from './integration_helpers';
 
 export function duplicateInFlightNavigationsIntegrationSuite() {

packages/router/test/integration/integration.spec.ts

@@ -36,8 +36,8 @@ import {
   Router,
   RouterModule,
   RoutesRecognized,
-} from '@angular/router';
-import {RouterTestingHarness} from '@angular/router/testing';
+} from '../../index';
+import {RouterTestingHarness} from '../../testing';
 
 import {RedirectCommand} from '../../src/models';
 import {

packages/router/test/integration/integration_helpers.ts

@@ -21,7 +21,7 @@ import {
   RouterModule,
   RouterOutlet,
   UrlSegment,
-} from '@angular/router';
+} from '../../index';
 import {Observable} from 'rxjs';
 import {map} from 'rxjs/operators';
 

packages/router/test/integration/lazy_loading.spec.ts

@@ -45,8 +45,8 @@ import {
   provideRouter,
   withRouterConfig,
   RouterLink,
-} from '@angular/router/src';
-import {getLoadedRoutes} from '@angular/router/src/router_devtools';
+} from '../../index';
+import {getLoadedRoutes} from '../../src/router_devtools';
 import {
   createRoot,
   RootCmp,

packages/router/test/integration/navigation_errors.spec.ts

@@ -32,7 +32,7 @@ import {
   NavigationCancel,
   NavigationCancellationCode,
 } from '../../src';
-import {RouterTestingHarness} from '@angular/router/testing';
+import {RouterTestingHarness} from '../../testing';
 import {
   createRoot,
   RootCmp,