This file is indexed.

/usr/src/gcc-4.8/debian/gcc-BV-multilib.overrides is in gcc-4.8-source 4.8.5-4ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
gcc-@BV@-multilib binary: binary-from-other-architecture