docs: replace ReflectiveInjector samples with Injector samples (#25162)

PR Close #25162

aio/content/examples/dependency-injection/src/app/car/car-injector.ts

@@ -1,26 +1,38 @@
-import { ReflectiveInjector } from '@angular/core';
+import { Injector } from '@angular/core';
 
 import { Car, Engine, Tires } from './car';
 import { Logger }             from '../logger.service';
 
 // #docregion injector
 export function useInjector() {
-  let injector: ReflectiveInjector;
+  let injector: Injector;
   // #enddocregion injector
   /*
   // #docregion injector-no-new
-  // Cannot instantiate an ReflectiveInjector like this!
+  // Cannot instantiate an Injector like this!
-  let injector = new ReflectiveInjector([Car, Engine, Tires]);
+  let injector = new Injector([
+    { provide: Car, deps: [Engine, Tires] },
+    { provide: Engine, deps: [] },
+    { provide: Tires, deps: [] }
+  ]);
   // #enddocregion injector-no-new
   */
   // #docregion injector, injector-create-and-call
-  injector = ReflectiveInjector.resolveAndCreate([Car, Engine, Tires]);
+  injector = Injector.create({
+    providers: [
+      { provide: Car, deps: [Engine, Tires] },
+      { provide: Engine, deps: [] },
+      { provide: Tires, deps: [] }
+    ]
+  });
   // #docregion injector-call
   let car = injector.get(Car);
   // #enddocregion injector-call, injector-create-and-call
   car.description = 'Injector';
 
-  injector = ReflectiveInjector.resolveAndCreate([Logger]);
+  injector = Injector.create({
+    providers: [{ provide: Logger, deps: [] }]
+  });
   let logger = injector.get(Logger);
   logger.log('Injector car.drive() said: ' + car.drive());
   return car;