Support for excluding field names in Views argument

Here is a patch which adds an option to the Views argument to exclude field names from the argument's subquery.

Updating patch to correct missing use statement for FormStateInterface.

Thanks - is there any way we can present this with a checkboxes instead of a text field?

Thanks - is there any way we can present this with a checkboxes instead of a text field?

Possibly, though with checkboxes for each field that could become a UX concern with many fields. But to your point there is likely room for improving both the UX and the validation of the new form element.