[clang-tools-extra] [clangd] [C++20] [Modules] Add scanning cache (PR #125988)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

I hope to backport this to 20.x. It shouldn't be riskful given the modules support in clangd is controlled by an "experiment" option.

https://github.com/llvm/llvm-project/pull/125988