[clang] [Clang][P1061] Add stuctured binding packs (PR #121417)

[via cfe-commits]

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@@ -4219,6 +4220,13 @@ class DecompositionDecl final
 
   void printName(raw_ostream &OS, const PrintingPolicy &Policy) const override;
 
+  /// Visit the variables (if any) that hold the values of evaluating the
+  /// binding. Only present for user-defined bindings for tuple-like types.
+  void VisitHoldingVars(llvm::function_ref<void(VarDecl *)> F) const;
+
+  // Visit the concrete bindings. (workaround)
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cor3ntin wrote:

Can you explain why it is a workaround?

https://github.com/llvm/llvm-project/pull/121417