tree b6eebbbe0534b0176470c03d4f86bae7f82b70a4
parent 91da310aebe855e3d97f150c698221b3e4c0bce3
author Sameer Agarwal <sameeragarwal@google.com> 1390322722 -0800
committer Sameer Agarwal <sameeragarwal@google.com> 1390323172 -0800

Move operator<< for FunctionSample back into ceres::internal.

This is undoing a change that Sergey submitted earlier moving
this into an anonymous namespace. This caused build breakage
internally at Google due to a namespace lookup error.

The original reason for Sergey's change was a lack of a
function declaration. I have added it before the function.

Change-Id: Iea88d1123215035e9f03022912078a2566ecde82