As always, this falls apart with separate compilat...

# language-proposals

[diesieben07]

As always, this falls apart with separate compilation:
Library A has open class Container<sticky T>
Library B and C depend on A (but not on each other) and do val sc = Container<String>() (compiler generates subclass in each)
Library D depends on B and C and does a is Container<String> - this cannot be compiled anymore, there are two Container<String> classes now.