MS_PARTIALLY_INVALID  372 gc/mark.c          	case MS_PARTIALLY_INVALID:
MS_PARTIALLY_INVALID  387 gc/mark.c      		GC_mark_state = MS_PARTIALLY_INVALID;
MS_PARTIALLY_INVALID  390 gc/mark.c          	    if (scan_ptr == 0 && GC_mark_state == MS_PARTIALLY_INVALID) {