[clang] [clang][deps] Extract service config into a struct (PR #181405)

[Qiongsi Wu via cfe-commits]

https://github.com/qiongsiwu approved this pull request.

LGTM! I don't think the CI failures are related, and rebuilding the failing ones should fix the problem. 

https://github.com/llvm/llvm-project/pull/181405