Fix return typehinting for Validator related classes

Should mixed be added where missing too?

Re-looking at this the MR is already touching a large number of files and not sure adding mixed won't break a few instances, so think this is fine.

Also phpstorm is complaining that some aren't named $value, so maybe a follow up should be opened to add mixed and consider renaming to $value be opened? Not opening one yet incase I'm wrong the variables are fine.

Committed 82df75e and pushed to 11.x. Thanks!

Discussed with @catch - we agreed this is good for 11.x only and is fine because they are all plugins and therefore not covered by the bc promise anyway.

@alexpott should I open a follow up for updating missing mixed typehint?

@smustgrave sure

mondrake → closed merge request !7206

opened 📌 Add typehint and possible update variable name for Validator related classes Active

Automatically closed - issue fixed for 2 weeks with no activity.