[Bug] Doesn't support multiple functions of the same name with different parameters

[brzzdev]

@Spyable
internal protocol MyHapticsProtocol {
    func send(_ style: UIImpactFeedbackGenerator.FeedbackStyle)
    func send(_ type: UINotificationFeedbackGenerator.FeedbackType)
}

results in a bunch Invalid redeclaration of ... warnings

[dafurman]

@brzzdev In your example, while possibly not ideal, this could be worked around by externalizing the argument labels:

internal protocol MyHapticsProtocol {
    func send(style: UIImpactFeedbackGenerator.FeedbackStyle)
    func send(type: UINotificationFeedbackGenerator.FeedbackType)
}

This will result in generated code using the parameter names in property names, which will allow the two to be distinguished.

That said, this issue does shed light on an edge case where the function and parameter names are the exact same, but take different types.
I could see this being a problem in code that may have APIs that look a bit more generic, like this:

protocol InputSender {
    func send(input: KeyboardInput)
    func send(input: MouseInput)
}

The only thing that'd we'd have to differentiate the functions would be the parameters' actual type. If we detect that two functions have the same signatures, I think our only option might generating code that includes the type names:

class InputSenderSpy: InputSender {
    var sendInputKeyboardInputCallsCount = 0
    var sendInputKeyboardInputCalled: Bool {
        return sendInputKeyboardInputCallsCount > 0
    }
    var sendInputKeyboardInputReceivedInput: KeyboardInput?
    var sendInputKeyboardInputReceivedInvocations: [KeyboardInput] = []
    var sendInputKeyboardInputClosure: ((KeyboardInput) -> Void)?
    func send(input: KeyboardInput) {
        sendInputKeyboardInputCallsCount += 1
        sendInputKeyboardInputReceivedInput = (input)
        sendInputKeyboardInputReceivedInvocations.append((input))
        sendInputKeyboardInputClosure?(input)
    }
    var sendInputMouseInputCallsCount = 0
    var sendInputMouseInputCalled: Bool {
        return sendInputMouseInputCallsCount > 0
    }
    var sendInputMouseInputReceivedInput: MouseInput?
    var sendInputMouseInputReceivedInvocations: [MouseInput] = []
    var sendInputMouseInputClosure: ((MouseInput) -> Void)?
    func send(input: MouseInput) {
        sendInputMouseInputCallsCount += 1
        sendInputMouseInputReceivedInput = (input)
        sendInputMouseInputReceivedInvocations.append((input))
        sendInputMouseInputClosure?(input)
    }
}

A more visually-pleasing option may be throwing in some underscores into these properties, like
send_UINotificationFeedbackGeneratorFeedbackType_CallsCount.