[clang] [Serialization] Read the initializer for interesting static variables before consuming it (PR #92353)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

@JonasToth @redstar @uweigand @Everybody0523 

Hi, this patch previously failed on  clang-s390x-linux. I guess it is a pattern mismatch  failure but I can't reproduce it. I am not sure if I found the wrong person. I find you from the SystemZ's group. I want to ask if you can verify the patch can pass on that platform? And if not, could you provide the generated pattern so that I can try to match it?

https://github.com/llvm/llvm-project/pull/92353