fix(ivy): add missing @nocollapse annotation to __NG_ELEMENT_ID__ fields (#28050)

__NG_ELEMENT_ID__ static fields are a part of how the Ivy node injector
works. In order to survive closure minification correctly, they need to
be annotated with @nocollapse.

PR Close #28050

packages/core/src/linker/template_ref.ts

@@ -54,6 +54,7 @@ export abstract class TemplateRef<C> {
   abstract createEmbeddedView(context: C): EmbeddedViewRef<C>;
 
   /** @internal */
+  /** @nocollapse */
   static __NG_ELEMENT_ID__:
       () => TemplateRef<any>| null = () => SWITCH_TEMPLATE_REF_FACTORY(TemplateRef, ElementRef)
 }