DTRACEACT_CLASS
(DTRACEACT_CLASS(x) == DTRACEACT_PROC_DESTRUCTIVE || \
DTRACEACT_CLASS(x) == DTRACEACT_KERNEL_DESTRUCTIVE)
(DTRACEACT_CLASS(x) == DTRACEACT_SPECULATIVE)
(DTRACEACT_CLASS(x) == DTRACEACT_AGGREGATION)