[clang] [Clang] Implement P0963R3 "Structured binding declaration as a condition" (PR #130228)

[via cfe-commits]

https://github.com/cor3ntin commented:

I have some questions

Can you edit
https://clang.llvm.org/docs/LanguageExtensions.html#language-extensions-back-ported-to-previous-standards ?

(For people following at home, CWG decided _not_ to provide a feature test macro)

https://github.com/llvm/llvm-project/pull/130228