breaking changed, dictionary.add return true/false when already exists or not and if not then don't add. dictionary.set set new value and if not exists then add.
breaking changed, dictionary.add return true/false when already exists or not and if not then don't add. dictionary.set set new value and if not exists then add.

Saltarelle/SaltarelleLinq,Saltarelle/SaltarelleLinq