veyron-browser: Include test filenames in the test name.
veyron-browser: Include test filenames in the test name.

I have added a new feature to my fork of Prova that can prefix
test names with the filename.

This is the first step of creating better test names.

https://github.com/veyron/release-issues/issues/530

Change-Id: I5cafbab5d404d647dd6bfbe4a4a42ac45cef5ea5

vanadium/browser,vanadium/browser,vanadium/browser,vanadium/browser