With the wrong constants, the error messages displayed to users would
show the incorrect reason for the bad certificate.

This can be manually tested by using https://badssl.com/, such as making
sure the error messages match for URLs such as:

- https://expired.badssl.com/
- https://wrong.host.badssl.com/
- https://untrusted-root.badssl.com/

Fixes https://github.com/eclipse-platform/eclipse.platform.swt/issues/2697