8185884: NMT: taskqueues are miscategorized to mtClass
Summary: Corrected memory type for taskqueue, which should be mtGC instead of mtClass
Reviewed-by: coleenp, shade

8152438: Threads may do significant work out of the non-shared overflow buffer
Summary: Before processing an element in the non-shared overflow buffer, try to push it into the local shared buffer to keep it full.
Reviewed-by: jmasa, ehelin, sjohanss

8151436: Leaner ArrayAllocator and BitMaps
Reviewed-by: tschatzl, pliden, kbarrett

8079082: VerifyNoCSetOopsClosure is derived twice from Closure
Summary: Change closure to a function object and update iteration
Reviewed-by: mgerdin, ecaspole

8080877: Don't use workers()->total_workers() when walking G1CollectedHeap::_task_queues
Reviewed-by: jmasa, drwhite

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david