fix(lint): track shared variables in modifier before and after #12725
+337
−59
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Motivation
closes #12724
the existing implementation missed the fact that users can declare local variables in the "before" block, and use them in the "after" block.
Solution
track the "shared" variable by capturing all the locally defined variables in the "before" block and intersecting them with all the used variables in the "after" block. Then, use the shared variable info to modify the suggested snippets with those variables.
PR Checklist