[Cuis-dev] Handy ReferenceFinder extension and a question...

[Phil B]

I created a minor extension to ReferenceFinder called, cleverly enough,
CustomReferenceFinder.  The idea is that you want to scan the image for
references not based on identity, but some other criteria.  My immediate
use case was for things that are equal, but not identical, to the target
object.  So for example: CustomReferenceFinder openExplorerOn: `0 at 0`.
(i.e. to clean up existing long lived instances)

So now my question is: does anyone have any clever ideas on how to best
replace all the found references with `0 at 0`?  I don't think #become: is the
answer because I want to keep all the existing references to the object in
question, not swap pointers around.
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