[clang] [Clang][P1061] Fix invalid pack binding crash (PR #135129)

[Jason Rice via cfe-commits]

ricejasonf wrote:

Sorry, I haven't had time to revisit this, but in that test we are only checking the validity of the decomposition declarations so I think the addition of `constexpr` to that variable should not affect the checks on the other declarations. There is plenty of coverage on decompositions in the other not "nontemplate" test file. Still, I probably did not need to step on the original test like that. I will consider adding more "invalid declaration" tests and address this when I get more time. Thank you.

https://github.com/llvm/llvm-project/pull/135129