Merge 16a3eb3e9fdee83ab9ed15769ec629eab4bc4174 from master.
Fix compiler test initialization issues.
We should call ShInitialize() / ShFinalize() once per process, so moving
them out of individual test's Setup() / Shutdown() to the test main().
BUG=
R=alokp@chromium.org
Review URL: https://codereview.appspot.com/13568048
