HADOOP-9414.  Refactor out FSLinkResolver and relevant helper methods.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1498720 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4372: set count to total after saving inodes
Merge branch 'trunk' into HDFS-4372