Reanalyze: align incremental DCE with legacy solver (PR #8089)

Author: cristianoc

CHANGELOG.md

@@ -22,6 +22,7 @@
 
 - Reanalyze: make optional args analysis liveness-aware, preventing false positives when functions are only called from dead code. https://github.com/rescript-lang/rescript/pull/8082
 - Fix: do not warn for "editor" field in `rescript.json`. https://github.com/rescript-lang/rescript/pull/8084
+- Reanalyze: align incremental dead code elimination with legacy solver behavior to ensure consistent liveness results across builds. https://github.com/rescript-lang/rescript/pull/8089
 
 #### :memo: Documentation