How did you navigate to that page? T115128: AbuseFilter test tools does not work for Flow edits says this doesn't work, and it indeed isn't listed at https://www.mediawiki.org/wiki/Special:AbuseFilter/examine?wpSearchUser=Vishal922&wpSearchPeriodStart=&wpSearchPeriodEnd=&submit=1&title=Special%3AAbuseFilter%2Fexamine .
This task is about adding a new AbuseFilter variable to Flow which would let us check the contents of post titles. (Looking at another extension which does it) I think you'd need AbuseFilter-computeVariable, AbuseFilter-generateUserVars and AbuseFilter-builder hooks for it. This is not a bug, but a feature request.
In that task by saying that it doesn't work, I meant that even if the conditions do match, it doesn't show the Flow edits. It looks like examine does actually work but it doesn't work for test. I'll update that task and also sorry for the confusion.
It's a separate object (topic title), but it's still filterable (with standard new_wikitext/old_wikitext).
However, I can see how it might be useful to filter it together.
Note topic titles can also be edited, so old_wikitext could apply.
Yes, this would be similar to article_text and article_prefixedtext variables. See https://www.mediawiki.org/wiki/Extension:AbuseFilter/Rules_format#All_variables I don't really see the need for adding an old_topic_title variable though because we've been doing fine without such a variable for move page actions too. However, if it isn't that difficult it would also be nice (though that should be lower priority than adding this variable because it's not very useful, imo).