Automated cleanups of javatests.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=71303625
Add a CodingConvention to show that goog.asserts.fail always throws. This helps CheckMissingReturn avoid spurious warnings.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=71305377