Does anybody knows something about the status of the change
in Context(Part) runUntilErrorOrReturnFrom:

eliot proposed a change (something about dead sender contexts)

(years ago :)

I don't see this version in current squeak 4.5 images.

This change is in the current pharo image but it givves some strange
behavior while debugging block returns.

13271 inconsistent behaviour when debugging

Stepping over this code will show the inspector, although the debugger
should return in�� the ^self send block .
[ ^ self ] value.
^ 1 inspect.