[clangd] Log clang-tidy configuration, NFC
[clangd] Log clang-tidy configuration, NFC

Summary: This is used for debugging purpose.

Reviewers: sammccall

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D57057

git-svn-id: a34e9779ed74578ad5922b3306b3d80a0c825546@352184 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra