Expelled even the innocent zeroing of destructed object references from the gc check pass. It's upsetting the debug checks, and it's cleaner to do all zapping of refs in the mark/cycle check pass anyway. Rev: src/array.c:1.74 Rev: src/gc.c:1.101 Rev: src/gc.h:1.53 Rev: src/mapping.c:1.90 Rev: src/object.c:1.131 Rev: src/svalue.c:1.81 Rev: src/svalue.h:1.60