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

[Kashika Akhouri via cfe-commits]

================
@@ -53,6 +53,17 @@ struct Lattice {
   }
 };
 
+static SourceLocation
+GetFactLoc(llvm::PointerUnion<const UseFact *, const OriginEscapesFact *> F) {
+  if (const auto *UF = F.dyn_cast<const UseFact *>())
+    return UF->getUseExpr()->getExprLoc();
+
----------------
kashika0112 wrote:

Done

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