SWEEP: Reviewed all catch blocks where Lucene uses ClassCastException and converted them to use our IsClassCastException() extension method (see #446).
SWEEP: Reviewed all catch blocks where Lucene uses ClassCastException and converted them to use our IsClassCastException() extension method (see #446).

NightOwl888/lucenenet,apache/lucenenet,jeme/lucenenet,NightOwl888/lucenenet,NightOwl888/lucenenet,jeme/lucenenet,apache/lucenenet,apache/lucenenet,jeme/lucenenet,apache/lucenenet,NightOwl888/lucenenet,jeme/lucenenet