NOT_MARKED        101 gc/dbg_mlc.c       if (NOT_MARKED == bp) return GC_UNREFERENCED;
NOT_MARKED        256 gc/dbg_mlc.c         ((oh *)p) -> oh_back_ptr = HIDE_BACK_PTR(NOT_MARKED);
NOT_MARKED        290 gc/dbg_mlc.c         ((oh *)p) -> oh_back_ptr = HIDE_BACK_PTR(NOT_MARKED);