Adding debugging for bug 62241

In the event of a bad filename warning record the relavent variables
so that we can figure out what is causing the failure.

See also change I532f8ee7c7455e43862b0204a7fff23d6792412e

Bug: 62241
Change-Id: If5d8b9e7f34c0f9bd09684d7dada8fafd7f5f7c2
Merge "Adding debugging for bug 62241"