[clang] [Serialization] Check for stack exhaustion when reading declarations (PR #79875)

[Chuanqi Xu via cfe-commits]

https://github.com/ChuanqiXu9 commented:

To make this testable, maybe we can refactor `clang::runWithSufficientStackSpace`  a little bit to make `DesiredStackSize` and `isStackNearlyExhausted::SufficientStack` configurable.

https://github.com/llvm/llvm-project/pull/79875