Read the run counts node:test writes

[estebanzimanyi]

node --test is the sixth dialect, and it differs from the other five in
counting the tests that never ran in TWO places. A run of two passing, one
skipped and one deferred prints tests 4, pass 2, skipped 1, todo 1: the
two not-run counters are disjoint from pass and from each other, so a reader
watching skipped alone certifies a suite whose every remaining test is
deferred. Node prints a deferred test with a tick, which is the "reads as a
pass" shape this tool exists to refuse, so both counters sum into the skip
count.

It is read before pytest for the reason Catch2 is: a log carries whatever else
the job printed, and a phrase shaped like pytest's summary sitting beside node's
counters would otherwise decide the total. A test holds that order.

Every string in the three new tests is copied from a real node --test run.
Against one, the tool reads total=4 skipped=2 and exits 1 naming two skipped
tests; against a clean run it reads total=2 skipped=0 and exits 0. 21 tests
pass.