8179550: Unify trace logging for InstanceRefKlass
Reviewed-by: kbarrett, tschatzl

8138888: Remove ExtendedOopClosure::apply_to_weak_ref_discovered_field
Reviewed-by: kbarrett, tschatzl

8138737: Remove oop_ms_adjust_pointers and use oop_iterate instead
Reviewed-by: kbarrett, stefank

8146401: Clean up oop.hpp: add inline directives and fix header files
Reviewed-by: coleenp

8145092: Use Unified Logging for the GC logging
Summary: JEP-271. VM changes contributed by brutisso, test changes contributed by david.
Reviewed-by: sjohanss, david, brutisso
Contributed-by: bengt.rutisson@oracle.com, david.lindholm@oralce.com

8139341: Hide ExtendedOopClosure::_ref_processor
Summary: Make ExtendedOopClosure::_ref_processor private.
Reviewed-by: mgerdin, sjohanss

8129417: Oop iteration clean-up to remove oop_ms_follow_contents
Reviewed-by: pliden, ehelin

8080746: Refactor oop iteration macros to be more general
Reviewed-by: stefank, pliden

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

8031401: Remove unused code in the reference processor
Summary: Assume pending_list uses discovered field and remove resulting dead code.
Reviewed-by: brutisso, pliden

8077315: Build failure on OSX after compiler upgrade
Reviewed-by: stefank, mgerdin

8077302: src/share/vm/oops/instanceRefKlass.inline.hpp has a doubble /*
Reviewed-by: stefank, mgerdin

8075955: Replace the macro based implementation of oop_oop_iterate with a template based solution
Reviewed-by: brutisso, coleenp, kbarrett, sjohanss