
Run misc-use-internal-linkage check over clang-tidy code. Also fixed a couple of other clang-tidy warnings. Apart from issues in header files, all '.cpp' in `clang-tools-extra/clang-tidy` must be clang-tidy clear now.
Run misc-use-internal-linkage check over clang-tidy code. Also fixed a couple of other clang-tidy warnings. Apart from issues in header files, all '.cpp' in `clang-tools-extra/clang-tidy` must be clang-tidy clear now.