HBASE-8699 Parameter to DistributedFileSystem#isFileClosed should be of type Path (Ted Yu)



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HBASE-8991 TestMasterFailover.testMasterFailoverWithMockedRITOnDeadRS failed again

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REVERT of HBASE-8983


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HBASE-8993 TestHRegionOnCluster.testDataCorrectnessReplayingRecoveredEdits fails

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