bug(cdk): DevkitFileSystem mistakenly assumes not a directory

[kyubisation]

Under some circumstances (I assume related to execution context), the e instanceof PathIsDirectoryException check in DevkitFileSystem.exists does not work. This causes the file/module resolution for the build tsconfig (files: ['main.ts', 'polyfill.ts]) to fail.

Reproduction

Unclear. Maybe run ng update @angular/core @angular/cli and ng update @angular/cdk separately?

Expected Behavior

The migrations include all files referenced in main.ts.

Actual Behavior

Only main.ts and polyfill.ts are resolved.

Environment

• Angular: 11.0.2
• CDK/Material: 11.0.1
• Browser(s): -
• Operating System (e.g. Windows, macOS, Ubuntu): Windows 10

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}