Fix #13997 (file filter: match relative path in project file with absolute path in file filter)

[danmar]

No description provided.

[firewave]

This might conflict with #7645. @glankk

And the usage of Path::getCurrentPath() in code which should be operating without any knowledge of the underlying system gives me major pause...

It also lacks unit tests.

[firewave]

It also lacks unit tests.

Ah right. You cannot unit test it because it depends on the CWD which is an obvious red flag.

Also matchglob() will now behave differently from matchglob().

[danmar]

And the usage of Path::getCurrentPath() in code which should be operating without any knowledge of the underlying system gives me major pause...

I will fix that.. then I can unit test also.

[danmar]

thanks.. no further reviews is needed right now I want to cleanup this..