I'm not getting any deprecation warning now when I compile my code with known deprecation. How to enable deprecation warning? I want to get rid of all deprecated calls.

Here is my WatchOS app test. I've only tested in the simulator in 11.3.1 (Deployment Target 6.1) and 11.4 beta (Deployment Target 6.2)import SwiftUIprivate final class Foo: ObservableObject { @Published var bar = Color.green}struct FilledButton: ButtonStyle { // this do not work, runtime error when this is referenced, see below, works fine with ViewModifier @EnvironmentObject fileprivate var foo: Foo func makeBody(configuration: Configuration) -> some View { configuration.label .foregroundColor(configuration.isPressed ? .red : .white) .padding() .background(Color.accentColor) .padding() // Thread 1: Fatal error: No ObservableObject of type Foo found. A View.environmentObject(_:) for Foo may be missing as an ancestor of this view. .background(self.foo.bar) // <==== runtime error anytime you reference this .cornerRadius(8) }}struct ContentView: View { var body: some View { AppView() .accentColor(.orange) .buttonStyle(FilledButton()) .environmentObject(Foo()) // <=== @EnvironmentObject is set here, this works with ViewModifier, not ButtonStyle }}struct AppView: View { var body: some View { VStack(spacing: 5) { Text("Hi, I'm Paul!") Keypad() } }}struct Keypad: View { var body: some View { VStack(spacing: 5) { Button(action: {}) { Text("One") } Button(action: {}) { Text("Two") } } }}struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() }}