This file is indexed.

/usr/src/gcc-4.7/debian/shlibs.common64 is in gcc-4.7-source 4.7.4-3ubuntu12.

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

The actual contents of the file can be viewed below.

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libgcc_s 1 lib64gcc1
libstdc++ 6 lib64stdc++6