Use case

The AlignmentGeometry class now contains redirecting constants like center or topLeft to allow the usage of dot shorthands:

Align(
  alignment: .topLeft,
  child: Foo(),
),

However, the predefined values for directional alignment (like topStart) are missing from the AlignmentGeometry class:

Align(
  // cannot use a dot shorthand
  alignment: AlignmentDirectional.topStart,
  child: Foo(),
),

Proposal

Add the corresponding constants into AlignmentDirectional to enable dot shorthands for them as well:

Align(
  alignment: .topStart,
  child: Foo(),
),