Each @test forks into its own process group with a nonblocking control
pipe carrying framed ready/complete/skip/expect-abort records; timeouts
escalate SIGTERM then SIGKILL over the group. New exports skip,
expectabort, current; new flags -list, -timeout-ms=, -package=. A clean
exit without a completion frame is a harness error, and the exit code
is 0/1 with a discovered/selected/started/completed accounting line.
toktest drops its fixed /tmp path for temp.named so parallel invocations
cannot collide.
Hojun-Cho
8bc7a622cc