Add additional tests for RegEx

[ashishdaulatabad]

This PR should hopefully address more tests for RegEx. This task is part of #43440.

More Details:

• First RegEx test PR: Move and add new RegEx test cases #43781

[AThousandShips]

Also please squash your commits into one, see here

Make sure you push your changes with git push --force

[AThousandShips]

You erased your previous fixes, please add them back in and squash all commits into one

[ashishdaulatabad]

These changes should be as per the suggestions. Let me know if there are more changes.

[inquisitev]

You erased your previous fixes, please add them back in and squash all commits into one

why ask developers to manually squash into one commit when github can do it for you on merge of PR by checking a box under settings?

[AThousandShips]

Because we don't do those features, they add their own artifacts and can create issues as far as I know

[inquisitev]

Because we don't do those features, they add their own artifacts and can create issues as far as I know

interesting, we use that feature at work and i have not seen any issues, but ill take your word for it

[Calinou]

We don't use GitHub's squash and merge feature on the main Godot repository, since it loses the merge commit in the process. We prefer keeping the merge commit to make the Git history more self-documented (even if that makes it longer when not using the --no-merges option).

[Calinou]

Tested locally (rebased on top of master 83b916b), it works as expected.

I force-pushed a rebased version with the commit message modified to follow conventions used in the repository, so this should be good to merge now.

[akien-mga]

Thanks! And congrats for your first merged Godot contribution 🎉