Refactor FieldCacheRangeFilter.FieldCacheDocIdSet to be separate class and fix 
the dangerous matchDoc() throws AIOOBE requirement
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                 Key: LUCENE-3595
                 URL: https://issues.apache.org/jira/browse/LUCENE-3595
             Project: Lucene - Java
          Issue Type: Task
            Reporter: Uwe Schindler
            Assignee: Uwe Schindler


Followup from LUCENE-3593:
The FieldCacheRangeFilter.FieldCacheDocIdSet class has a strange requirement on 
the abstract matchDoc(): It should throw AIOOBE if the docId is > maxDoc. This 
check should be done by caller as especially on trunk, e.g. 
FieldCacheTermsFilter does not seem to always throw this exception correctly 
(getOrd() is a method and no array in TermsIndex cache).

Also in 3.x the Filter does not correctly respect deletions when a FieldCache 
based on a reopened reader is used.

This issue will refactor this and fix the bugs and moves the docId check up to 
the iterator.

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