Joseph Ferano
6e7b53b988
`flan-watch-ghost-call-regexp' allowed one hyphenated segment until this lane's sibling widened it, so `watch-num-i64' matched as far as `watch-num', required whitespace, found `-i64' and backtracked to failure: the row appeared in the watch buffer as usual and the call site got no inline value at all. Nothing automated covered the widening. It does now — a block pinning both accumulator heads beside the four one-segment ones, verified by putting the `?' back and watching exactly those two checks fail. The other half of that handoff asked for a test of `watch_render_num''s `n=0' branch. It cannot be written: `s->num' is set in one place, `watch_record', which always falls through to `s->n += 1', and the clear and the increment sit inside one odd-generation window. The reader never compares the slot's epoch to the global one, so a reset does not make a slot read as empty either. The branch is dead, and the live consequence is that a read taken after `:reset t' and before the program's next sample reports the previous window — which is why the existing test waits for the count to drop rather than reading once. Recorded in HANDOFF-f3.md with the two ways out, both of which belong to whoever owns runtime/flan_dev.c.
