/usr/lib/llvm-4.0/bin/lldb-server is in lldb-4.0 1:4.0.1-10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/llvm-4.0/bin/lldb-server-4.0.1
/usr/lib/llvm-4.0/bin/lldb-server-4.0.1