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

[via cfe-commits]

================
@@ -1099,6 +1099,13 @@ def err_lambda_capture_misplaced_ellipsis : Error<
   "the name of the capture">;
 def err_lambda_capture_multiple_ellipses : Error<
   "multiple ellipses in pack capture">;
+def err_binding_multiple_ellipses : Error<
+  "multiple packs in structured binding declaration">;
+def note_previous_ellipsis : Note<
+  "previous binding pack specified here">;
+def ext_cxx_binding_pack : ExtWarn<
----------------
cor3ntin wrote:

This is not addressed yet

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