Comment #2 on issue 3981 by [email protected]: #<= on SourcedMethodReference is very slow
http://code.google.com/p/pharo/issues/detail?id=3981
It probably needs improvement (it's an extension of the method it overrides in MethodReference)
But I doubt that the time comparison plays because if the method references in a "senders of" window will never have to be compared for timestamp, because the class and/or selector are already different. Otherwise said: the time comparison is only done for methods that have identical class/selector.
