[clang] [Serialization] Handle uninitialized type constraints (PR #110496)

[Younan Zhang via cfe-commits]

zyn0217 wrote:

#111179 aims for a different case (and that is a follow-up for @cor3ntin's recursive concept patch, which is not yet merged into 19, I think), while this one is related to a serialization bug that has persisted for some time.

https://github.com/llvm/llvm-project/pull/110496