Not the last breakage (Was: TLBB: The Last Big Breakage)

[bearophile]

> Another breaking change could be the

I think the implementation of "scope" could break quite more user 
code than the introduction of "final by default" class methods, 
because "in" function argument are common and they mean "scope 
const". There is not even a DIP for scope (and some Rust people 
say D "scope" can't be very useful).

Bye,
bearophile