feat(ivy): require 'token' for ngInjectableDef (#30855)

The compiler generates a 'token' field when it emits an ngInjectableDef,
but this field was not required by defineInjectable or the InjectableDef
interface, nor was it added by InjectionToken.

This commit makes 'token' required and adds it where missing.

PR Close #30855

packages/core/test/bundling/injection/usage.ts

@@ -10,6 +10,7 @@ import {Injector, ɵcreateInjector as createInjector, ɵɵdefineInjectable, ɵɵ
 
 export class RootService {
   static ngInjectableDef = ɵɵdefineInjectable({
+    token: RootService,
     providedIn: 'root',
     factory: () => new RootService(),
   });
@@ -17,6 +18,7 @@ export class RootService {
 
 export class ScopedService {
   static ngInjectableDef = ɵɵdefineInjectable({
+    token: ScopedService,
     providedIn: null,
     factory: () => new ScopedService(),
   });