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

[Erich Keane via cfe-commits]

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@@ -15991,6 +15991,13 @@ TreeTransform<Derived>::TransformFunctionParmPackExpr(FunctionParmPackExpr *E) {
   return E;
 }
 
+template <typename Derived>
+ExprResult TreeTransform<Derived>::TransformResolvedUnexpandedPackExpr(
+    ResolvedUnexpandedPackExpr *E) {
+  // Default behavior is to do nothing with this transformation.
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erichkeane wrote:

I think I do, we need the tree-transform to be visiting each of the individual bindings.  IDK why the ParmPackExpr does it that way though.

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