/usr/bin/clang-query-3.7 is in clang-3.7 1:3.7.1-2ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/llvm-3.7/bin/clang-query
/usr/bin/../lib/llvm-3.7/bin/clang-query