make demo compilable on Xcode 11

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.ItemView.swift

@@ -44,9 +44,10 @@ extension Modern.PokedexDemo {
                         .id(pokemonDisplay)
                 }
                 ZStack {
-                    
+                    { () -> AnyView in
                         if let pokemonForm = pokemonForm {
 
+                            return AnyView(
                                 VStack(alignment: .leading) {
 
                                     HStack {
@@ -55,22 +56,23 @@ extension Modern.PokedexDemo {
                                     }
                                     HStack {
                                         self.view(for: pokemonForm.$pokemonType1)
-                                if let pokemonType2 = pokemonForm.$pokemonType2 {
+                                        pokemonForm.$pokemonType2.map(self.view(for:))
-                                    
-                                    self.view(for: pokemonType2)
-                                }
                                         Spacer()
                                     }
                                     Spacer()
                                 }
+                            )
                         }
                         else {
 
+                            return AnyView(
                                 Text(pokedexEntry?.$id ?? "")
                                     .foregroundColor(Color(UIColor.placeholderText))
                                     .fontWeight(.heavy)
                                     .frame(maxWidth: .infinity)
+                            )
                         }
+                    }()
                 }
                 .frame(maxWidth: .infinity)
             }

Demo/Sources/Helpers/NetworkImageView.swift

@@ -20,20 +20,25 @@ struct NetworkImageView: View {
     // MARK: View
     
     var body: some View {
+        
         if let image = self.imageDownloader.image {
 
+            return AnyView(
                 Image(uiImage: image)
                     .resizable()
                     .aspectRatio(contentMode: .fit)
+            )
         }
         else {
 
+            return AnyView(
                 Circle()
                     .colorMultiply(Color(UIColor.placeholderText))
                     .onAppear {
 
                         self.imageDownloader.fetchImage()
                     }
+            )
         }
     }