Remove the _AlwaysSelectable const constructor since it is always stored as a Selectable<T> and the generic type isn't available as a const.
Remove the _AlwaysSelectable const constructor since it is always stored as a Selectable<T> and the generic type isn't available as a const.

Fix run time type error exposed by dart2js when compiling with Dart2 semantics.

Does not yet appear in DDC because of a known issue.
https://github.com/dart-lang/sdk/issues/32918

PiperOrigin-RevId: 197071245

angulardart/angular_components,angulardart/angular_components,angulardart/angular_components