🐞 bug report

Affected Package

The issue is caused by package @angular/core

Is this a regression?

I don't think so, tested on Angular 7 and 8

Description

Through `read` option of `ViewChild` we are able to retrieve services from Injector, for example if we add some service to our component's providers, we can read it. We can also read `ElementRef`, for example. However, we cannot retrieve `ChangeDetecotrRef`. We are getting undefined.

🔬 Minimal Reproduction

https://stackblitz.com/edit/angular-read-cdr

🌍 Your Environment

Angular Version: