This file is indexed.

/usr/bin/run-clang-tidy-4.0.py is in clang-tidy-4.0 1:4.0.1-10~deb9u2.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/bin/../lib/llvm-4.0/share/clang/run-clang-tidy.py