No warning shown when a class is imported but not specified in exports field

[Deleted user]

pubspec.yaml:

name: analysis_exports_error
description:
version: 0.0.1

environment:
  sdk: ">=2.0.0 <3.0.0"

dependencies:
  angular: any

dev_dependencies:
  build_runner: any
  build_web_compilers: any

analysis_options.yaml:

analyzer:
  exclude:
  plugins:
    angular:
      enabled: true

lib/a.dart:

class A{
  static const b='hi';
}

lib/comp.dart:

import 'package:angular/angular.dart';
import 'package:analysis_exports_error/a.dart';
@Component(
  selector: 'comp',
  template: '''
{{A.b}}
  ''',
  directives: [],
)
class Comp {}

In above code, class A is imported but it is not added to exports property of component comp, but still we don't see any warnings.

As soon as 2nd line import 'package:analysis_exports_error/a.dart'; is commented out, we start to see warnings.

[MichaelRFairhurst]

Looks like this was fixed (on accident) during a recent refactoring that just got published, #655.

You should just have to restart your analysis services to get the update, though the old (lack of an) error may be cached at the beginning.