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