This file is indexed.

/usr/lib/x86_64-linux-gnu/libLLVM-3.5.0.so.1 is in llvm-3.5-dev 1:3.5-10.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libLLVM-3.5.so.1