Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours:

http://lists.squeakfoundation.org/pipermail/packages/2016-March/009486.html

Name: Collections-ul.680
Ancestors: Collections-ul.679

#includes: will return false if the receiver is some kind of character set and the argument is not a character. E.g. ['0' asCharacterSet includes: 48.123] won't evaluate to true anymore, nor will [ '' asCharacterSet includes: nil ] raise an error.

#occurrencesOf: revamp - round #2
- added optimized implementations to all Collection subclasses where it was sensible - as suggested by Nicolas.
- moved all implementations from testing to enumeration category, because this method doesn't answer a boolean value, but it's similar to #count:, which is in enumeration.

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