[wojt-janowski]

Docs for NativePHP/mobile-air#689 and NativePHP/mobile-air#690, both follow-ups to #614. Merge this once those land; the version labels say 4.9, so adjust them if they ship in a different release.

Validation page (digging-deeper/validation.md)

• Wildcard rules in validateOnly() (mobile-air#689): the aside said validateOnly('items.0.name') doesn't match an items.*.name rule. It now says it does since 4.9, with each * standing for one segment, and keeps the 4.7/4.8 advice to use validate() there.
• Which handlers are covered (mobile-air#690): the list now includes #[On] / #[OnNative] listeners and ->on() closures, handlers a child's event runs (through #[On] or an @event attribute on the child's tag), #[Poll] methods and onBackPressed(). Lifecycle hooks such as mount() and onResume() are still listed as not covered. A line says what 4.7 and 4.8 covered.
• Child components: the aside about emit() putting a parent's messages in the child's bag is replaced by a short section. Each handler is covered by the component it belongs to, the child's handler carries on after emit(), and a parent without the trait shows the error overlay. The old behaviour is kept in an aside for 4.7 and 4.8.
• Testing: names emitNative(), firePoll() and pressBack() as going through the same handlers.

php artisan test --filter=Documentation passes.