duplicates:

• SR-14408 Improve diagnostic when trying to use enum case without payload

Issue Description:

Given an enum with a case with an associated value:

enum Something {
    case inactive
    case dragging(translation: CGSize)
 
    var isDragging: Bool { return self == .dragging }
}

You get this error message:

Cannot convert value of type 'Something' to expected argument type 'UICellConfigurationState.DragState'

One would expect an error message related to the impossibility of comparing an enum with associated value that is not declared Equatable, or at least related to the enum itself, but the compiler tries to compare it to a totally unrelated enum in an imported module.