[clang] [clang] diagnose invalid std::tuple_size sizes (PR #159677)

[Shafik Yaghmour via cfe-commits]

https://github.com/shafik commented:

Can you please add a more complete description of the actual underlying problem something along the lines of what I added here: https://github.com/llvm/llvm-project/pull/159579#issuecomment-3310185185

It took me and others a bit to get the original problem and so the description is valuable.

Also this is important documentation for the git log and future devs.

https://github.com/llvm/llvm-project/pull/159677