Swift cannot see Swift protocol conformance of ObjC class

[an0]

Description

I have this Swift protocol:

@objc public protocol ViewControllerAPI {
    func foo()
}

A ObjC class adopts the protocol:

@interface ViewController : UIViewController <ViewControllerAPI>

@end

In anther Swift file, when I try to call the protocol method foo, Xcode complains ViewController has no member foo.

class Presenter {
    func present() {
        ViewController().foo() // Value of type 'ViewController' has no member 'foo'
    }
}

Reproduction

@objc public protocol ViewControllerAPI {
    func foo()
}

@interface ViewController : UIViewController <ViewControllerAPI>

@end

class Presenter {
    func present() {
        ViewController().foo() // Value of type 'ViewController' has no member 'foo'
    }
}

Expected behavior

ViewController().foo() works

Environment

6.2

Additional information

No response

[allevato]

I think this is a dupe of #83614?