RedDocMD added a comment.

@NoQ, looking through the source code of `trackExpressionValue` I can see that 
it adds many visitors to the `BugReport` passed to it. That I believe is the 
recursive attachment of visitors you described above.
So, as far as I understood, I have to make changes in this function to mark an 
`ExplodedNode` as interesting when it changes tracking mode. This change is 
marked by when recursively a new visitor is attached (or at least in some of 
those places, the exact places will have to be figured out).
Then this can be queried from the checker to obtain the information that is 
needed.
Am I thinking on the right track?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97183/new/

https://reviews.llvm.org/D97183

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