A few more test cleanups to enable the new parser:

* DisambiguatePropertiesTest: Put semicolons in more reasonable places so that new parser doesn't produce "empty statement" nodes.
* Make the IntegrationTest less picky about the exact number of parse errors it expects.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=63806876
Split INEXISTENT_PROPERTIES warnings so that we disable one that rely on uncertain type information.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=63833634