[clang] [LifetimeSafety] Detect use of a reference type as a use of underlying origin (PR #184295)

[Utkarsh Saxena via cfe-commits]

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@@ -248,7 +249,9 @@ class UseFact : public Fact {
   const OriginList *getUsedOrigins() const { return OList; }
   const Expr *getUseExpr() const { return UseExpr; }
   void markAsWritten() { IsWritten = true; }
+  void markAsReferenceWrite() { IsReferenceWrite = true; }
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usx95 wrote:

The first approach LGTM. Having a broken origin list with only a single head might be confusing.

https://github.com/llvm/llvm-project/pull/184295