Adds --analyzer2

This is temporary while I migrate recipes over to the new
switches. I'll remove analyzer2 once that is done.

BUG=398118
TEST=none
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/426783002

git-svn-id: http://src.chromium.org/chrome/trunk/src/testing@286307 4ff67af0-8c30-449e-8e8b-ad334ec8d88c