Use when adding CoreSpotlight/system-search indexing to a NativeScript iOS app, when an app freezes or becomes unresponsive shortly after launch/data load, or when a hang report shows the main thread stuck in v8::Locker::Initialize — indexSearchableItems enumerates JS-array adapters on dispatch_apply worker threads and deadlocks the V8 isolate unless you materialize real NSArrays and hop completion handlers back to the main thread.
