Make autocompletion gives you better result when assign closure

Closure.swift

/// Eg: Closure<(Int) -> Void>
struct Closure<T> {
    let closure: T
}

class LoginView: UIView {
  var appereanceConfig: Closure<(UIStackView)->Void> = .init { _ in }
  private stackView: UIStackView()
  
  convenience init() {
    self.init(frame: .zero)
    appereanceConfig.closure(stackView)
  }
}

let v = LoginView()
// Was
// Here we don't get good completion
v.appereanceConfig = { stack in
    
}

// But now its better
v.appereanceConfig = .init { stack in

}