Existential any to protocol for Swift 6 (pointfreeco#3370)

* Apply existential any to protocol for Swift 6

* Update Package@swift-6.0.swift

* Update Package.swift

* Apply any to Macro.Type

* Apply any for the rest

* Applying the any keyword internally for typealias in a _KeyPath

* Undoing accidental syntax

---------

Co-authored-by: Stephen Celis <stephen@stephencelis.com>
Co-authored-by: Stephen Celis <stephen.celis@gmail.com>

Author: qwerty3345

Examples/CaseStudies/SwiftUICaseStudies/02-SharedState-Notifications.swift

@@ -24,7 +24,7 @@ struct SharedStateNotifications {
     @SharedReader(.screenshotCount) var screenshotCount = 0
   }
   enum Action {
-    case factResponse(Result<String, Error>)
+    case factResponse(Result<String, any Error>)
     case onAppear
   }
   @Dependency(\.factClient) var factClient

Examples/CaseStudies/SwiftUICaseStudies/03-Effects-Basics.swift

@@ -32,7 +32,7 @@ struct EffectsBasics {
     case decrementDelayResponse
     case incrementButtonTapped
     case numberFactButtonTapped
-    case numberFactResponse(Result<String, Error>)
+    case numberFactResponse(Result<String, any Error>)
   }
 
   @Dependency(\.continuousClock) var clock

Examples/CaseStudies/SwiftUICaseStudies/03-Effects-Cancellation.swift

@@ -25,7 +25,7 @@ struct EffectsCancellation {
     case cancelButtonTapped
     case stepperChanged(Int)
     case factButtonTapped
-    case factResponse(Result<String, Error>)
+    case factResponse(Result<String, any Error>)
   }
 
   @Dependency(\.factClient) var factClient

Examples/CaseStudies/SwiftUICaseStudies/03-Effects-Refreshable.swift

@@ -23,7 +23,7 @@ struct Refreshable {
   enum Action {
     case cancelButtonTapped
     case decrementButtonTapped
-    case factResponse(Result<String, Error>)
+    case factResponse(Result<String, any Error>)
     case incrementButtonTapped
     case refresh
   }

Examples/CaseStudies/SwiftUICaseStudies/03-Effects-WebSocket.swift

@@ -29,7 +29,7 @@ struct WebSocket {
     case alert(PresentationAction<Alert>)
     case connectButtonTapped
     case messageToSendChanged(String)
-    case receivedSocketMessage(Result<WebSocketClient.Message, Error>)
+    case receivedSocketMessage(Result<WebSocketClient.Message, any Error>)
     case sendButtonTapped
     case sendResponse(didSucceed: Bool)
     case webSocket(WebSocketClient.Action)
@@ -227,7 +227,7 @@ struct WebSocketClient {
   var open: @Sendable (_ id: ID, _ url: URL, _ protocols: [String]) async -> AsyncStream<Action> = {
     _, _, _ in .finished
   }
-  var receive: @Sendable (_ id: ID) async throws -> AsyncStream<Result<Message, Error>>
+  var receive: @Sendable (_ id: ID) async throws -> AsyncStream<Result<Message, any Error>>
   var send: @Sendable (_ id: ID, _ message: URLSessionWebSocketTask.Message) async throws -> Void
   var sendPing: @Sendable (_ id: ID) async throws -> Void
 }
@@ -295,7 +295,7 @@ extension WebSocketClient: DependencyKey {
         try self.socket(id: id).cancel(with: closeCode, reason: reason)
       }
 
-      func receive(id: ID) throws -> AsyncStream<Result<Message, Error>> {
+      func receive(id: ID) throws -> AsyncStream<Result<Message, any Error>> {
         let socket = try self.socket(id: id)
         return AsyncStream { continuation in
           let task = Task {

Examples/CaseStudies/SwiftUICaseStudies/04-NavigationStack.swift

@@ -190,7 +190,7 @@ struct ScreenA {
     case dismissButtonTapped
     case incrementButtonTapped
     case factButtonTapped
-    case factResponse(Result<String, Error>)
+    case factResponse(Result<String, any Error>)
   }
 
   @Dependency(\.dismiss) var dismiss

Examples/CaseStudies/SwiftUICaseStudies/05-HigherOrderReducers-ResuableOfflineDownloads/DownloadClient.swift

@@ -3,7 +3,7 @@ import Foundation
 
 @DependencyClient
 struct DownloadClient {
-  var download: @Sendable (_ url: URL) -> AsyncThrowingStream<Event, Error> = { _ in .finished() }
+  var download: @Sendable (_ url: URL) -> AsyncThrowingStream<Event, any Error> = { _ in .finished() }
 
   @CasePathable
   enum Event: Equatable {

Examples/CaseStudies/SwiftUICaseStudies/05-HigherOrderReducers-ResuableOfflineDownloads/DownloadComponent.swift

@@ -14,7 +14,7 @@ struct DownloadComponent {
   enum Action {
     case alert(PresentationAction<Alert>)
     case buttonTapped
-    case downloadClient(Result<DownloadClient.Event, Error>)
+    case downloadClient(Result<DownloadClient.Event, any Error>)
 
     @CasePathable
     enum Alert {

Examples/CaseStudies/SwiftUICaseStudies/05-HigherOrderReducers-ReusableFavoriting.swift

@@ -28,7 +28,7 @@ struct FavoritingState<ID: Hashable & Sendable>: Equatable {
 enum FavoritingAction {
   case alert(PresentationAction<Alert>)
   case buttonTapped
-  case response(Result<Bool, Error>)
+  case response(Result<Bool, any Error>)
 
   enum Alert: Equatable {}
 }

Examples/CaseStudies/SwiftUICaseStudiesTests/03-Effects-WebSocketTests.swift

@@ -6,7 +6,7 @@ import XCTest
 final class WebSocketTests: XCTestCase {
   func testWebSocketHappyPath() async {
     let actions = AsyncStream.makeStream(of: WebSocketClient.Action.self)
-    let messages = AsyncStream.makeStream(of: Result<WebSocketClient.Message, Error>.self)
+    let messages = AsyncStream.makeStream(of: Result<WebSocketClient.Message, any Error>.self)
 
     let store = await TestStore(initialState: WebSocket.State()) {
       WebSocket()
@@ -57,7 +57,7 @@ final class WebSocketTests: XCTestCase {
 
   func testWebSocketSendFailure() async {
     let actions = AsyncStream.makeStream(of: WebSocketClient.Action.self)
-    let messages = AsyncStream.makeStream(of: Result<WebSocketClient.Message, Error>.self)
+    let messages = AsyncStream.makeStream(of: Result<WebSocketClient.Message, any Error>.self)
 
     let store = await TestStore(initialState: WebSocket.State()) {
       WebSocket()