Might be neat if Ruby had `Self` as sugar for `self.class`, inspired by Swift. Like this:
```
class Object
def self.const_missing(name) = name == :Self ? self : super
end
class Greeter
def greet
puts "My class name is #{Self.name}."
end
end
# Outputs: "My class name is Greeter."
Greeter.new.greet
```