Instead of using __asm, is it possible to use @compatibility_alias to achieve the same thing?

In order to use UIStackView directly, FDStackView uses __asm to "generate" UIStackView if it's running before iOS 9.0. But will it be nicer to use @compatibility_alias to do the same thing?

Start by inspecting the FDStackView implementation that uses __asm to provide UIStackView before iOS 9. Compare that approach with Objective-C's @compatibility_alias behavior and determine whether it preserves the same runtime compatibility. Done means documenting a clear decision and any required follow-up change.

Written by the indexing model from the issue text.