Eliot Miranda wrote:
>     Interesting!  To my mind that definition is incorrect.  I would 
> expect the sender of a block to be the sender of the enclosing method, 
> in which case the definition would arguably be
> 
> BlockClosure methods for accessing
> sender
> ^self home sender
> 
> A block activation's caller would be it's sender slot, so within a block 
> you might refer to thisContext caller.  But what is arguably a bug in my 
> implementation is that within a block activation thisContext sender 
> refers to the caller (the sender of value: to the activation's block) 
> not to the sender of the enclosing method.

How about instead of faking out BlockClosure>>sender we fix MessageTally 
along the lines of:

MessageTally>>tallySendsTo:inBlock:showTree:

   prev := aBlock asContextWithSender: thisContext.

This should work just as well if I understand the intent of the change 
correctly.

Cheers,
   - Andreas