I was just fixing #4690, and notice that there is a file that is a symbolic link: https://github.com/antlr/grammars-v4/blob/f4b7e36bcf8345206e74f1020d28523f3dcfc0ab/eiffel/examples/eiffel-2-eiffel/Eiffel.g4. We can't have symbolic links because they don't work on Windows at least with this repo. So, we need a check in the build to make sure this doesn't happen anymore.

Further, I don't know why the examples inputs contains an Antlr driver application. It's not needed, and certainly causes confusion. What is EiffelGrammar.g4, and how is it different than Eiffel.g4?? The driver program is only for Java, and only works on a Unix box, not Windows. It needs to be deleted.

The code review comment was ignored, and the grammar checked in. It should not have been ignored. #3976 (review)