Some DCG constructs aren't supported and can't be expanded, here we
remove offending DCG rule and don't compile it at all – in a similar
fashion to what we do when incorrect goal was found – whole predicate
isn't getting compiled.
Fixes#2675
- this re-enables line ending and file path normalization
- the latter might be unwanted, but there is only a shared flag
- this might result in too loose matching of / and \ in stdout and stderr as prolog syntax may be mistaken for a path
- goals.pl is used by both compound_goal.toml and multiple_goals.toml therefor renamed the later to share a common prefix with goals.pl, to keep them together
