swift

6cc1a8d8 - Diagnostic message: suppress printing "requires LifetimeDependence"

Diagnostic message: suppress printing "requires LifetimeDependence" Adopters of the new Span and MutableSpan types should not encounter information about an experimental feature when they attempt to use these types in unsupported ways, such as simply returning them from a function. Fixes rdar://151788740 (Diagnostic message: suppress printing "requires '-enable-experimental-feature LifetimeDependence'")