[clang] [LifetimeSafety] Detect use-after-return (PR #165370)

[Kashika Akhouri via cfe-commits]

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@@ -42,6 +42,11 @@ class LifetimeSafetyReporter {
   virtual void reportUseAfterFree(const Expr *IssueExpr, const Expr *UseExpr,
                                   SourceLocation FreeLoc,
                                   Confidence Confidence) {}
+
+  virtual void reportUseAfterReturn(const Expr *IssueExpr,
+                                    const Stmt *EscapeStmt,
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kashika0112 wrote:

Done. I've updated the signature to use `const Expr* EscapeExpr` as you suggested.

I just wanted to confirm the effect on diagnostics: the warning now correctly points to the variable being returned (e.g., on `local` in `return local;`) instead of the general `return` keyword. This seems more precise, so I'm assuming this was the intended and desirable outcome.

https://github.com/llvm/llvm-project/pull/165370