+1 to the proposal, of course. The lack of imagination about what people might want to overload has led to some boring threads about workarounds on this site that haven't amounted to problem-solving change. If you've got the resources to do so, please enable this. 
These are magnificent questions, and are on the way to the next two related proposals we need.
- Because many methods are going to be abandoned in favor of properties, now that get accessors have one new feature and one formerly-missing old one, we'll need the same overloading capabilities for those. (Keypath syntax does not handle this completely; get accessors basically can't be referred to directly. Functions will be easier to deal with but the users' shift will be to properties.)
- Generic computed variables have always been missing, but I expect more people will notice, more, with get accessors being more useful.
I think all of that could go into one grammar discussion thread.