8202178: type.getKind() for var is None instead of Error Summary: make sure var kind != None for instance variables without initialization Reviewed-by: mcimadamore

8203028: Simplify reference processing in light of JDK-8175797 Summary: Removed special handling of Reference.next Reviewed-by: tschatzl, sjohanss, mchung

8200266: [Graal] Update ProblemList-graal.txt files Reviewed-by: kvn

8203369: Check for both EAGAIN and EWOULDBLOCK error codes Reviewed-by: alanb