NoQ added a comment. Maybe you could instead make a checker that subscribes for `checkEndAnalysis` and scans the provided `ExplodedGraph`'s `nodes_begin()..nodes_end()` for visited statement-based program points (as in `PathDiagnosticLocation::getStmt(N)`)? This should give you per-statement precision, and you'd avoid dealing with the CFG element kinds. That sounds more straightforward and that's essentially how our deadcode checker works (but it suppresses its positives for incomplete analyses - you don't need even that).
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