/usr/share/doc/llvm-gcc-4.7/changelog.Debian.gz is in llvm-gcc-4.7 3.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/llvm-gcc-4.7/../dragonegg-4.7/changelog.Debian.gz
/usr/share/doc/llvm-gcc-4.7/../dragonegg-4.7/changelog.Debian.gz