Whats the best way of converting of converting a List to an immutable list? If I do `driveActivities...

# stdlib

[Marco Pierucci]

Whats the best way of converting of converting a List to an immutable list?
If I do driveActivities = drivingActivities.toImmutableList()
The compiler complains because toImuutableList() return a List

I can use driveActivities = drivingActivities.toPersistentList() but it somehow feels like I'm leaking Impl details?

[Marco Pierucci]

If I understood https://github.com/Kotlin/kotlinx.collections.immutable/issues/140 discussion correctly then using persitentList builder does not look like a bad idea