Always clobber bootstrap build trees.


git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@2142 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
Upgrade Android test targets from warnings to failure.

(i.e. they will make the bot red from now on).


git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@2143 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5