SOLR-5261: fix javabin block indexing back compat

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1525732 13f79535-47bb-0310-9956-ffa450edef68
improve test: a few more implicit properties

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1525733 13f79535-47bb-0310-9956-ffa450edef68