[clang] [Serialization] Fix source location data loss during decoding. (PR #145529)

[Chuanqi Xu via cfe-commits]

https://github.com/ChuanqiXu9 commented:

Sorry. I failed to understand the problem. In what case, may the encoder produce up to 33 bits?

https://github.com/llvm/llvm-project/pull/145529