Ivy - Map values are not working with ngClass expressions

With Angular Ivy(version: 9.0.0-rc.5) Map values are not working with ngClass expressions. This is working without Ivy.

• Minimal steps to reproduce

@Component({
  selector: 'app-root',
  template: `
    <button [ngClass]="clsMap">Hello World</button>
  `,
  styles: [
    `
      .btn {
        min-width: 100px;
        padding: 10px;
      }

      .btn.btn-primary {
        background-color: teal;
      }
    `
  ]
})
export class AppComponent {
  title = 'ng-cls-map-issue';

  clsMap = new Map([
    ['btn', true],
    ['btn-primary', true]
  ])
}

Output with Ivy:

Output without Ivy:

[ajitsinghkaler]

@matsko I think we can close this issue

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