Singleton classes should only ever be attached to one object. This means that checking for the object should be the same as checking for the class. This should be slightly faster by avoiding one memory acccess as well as allowing us to skip checking if the receiver is a heap object.
This will be most common for calling class methods.
Added by jhawthorn (John Hawthorn) about 4 years ago
Simplify known class check for singletons
Singleton classes should only ever be attached to one object. This means
that checking for the object should be the same as checking for the
class. This should be slightly faster by avoiding one memory acccess as
well as allowing us to skip checking if the receiver is a heap object.
This will be most common for calling class methods.