Avoid duplicated variable under if-macro syntax

[fummicc1]

This PR addresses #273 and performs uniqueEntities method for IfMacroModel before rendering because entities inside IfMacroModel are not treated as NominalModel's entities.

I think IfMacro support is insufficient yet (see #263 ) but I am focusing to fix #273 in this PR.

• Input

/// @mockable
protocol PresentableListener: AnyObject {
    #if RELEASE
    func run(value: Int)
    func run(value: String)
    #endif
}

• Output

Before

After

class PresentableListenerMock: PresentableListener { init() { } #if RELEASE private(set) var runCallCount = 0 var runHandler: ((Int) -> ())? func run(value: Int) { runCallCount += 1 if let runHandler = runHandler { runHandler(value) } } // not supporting overload private(set) var runCallCount = 0 var runHandler: ((String) -> ())? func run(value: String) { runCallCount += 1 if let runHandler = runHandler { runHandler(value) } } #endif }

class PresentableListenerMock: PresentableListener { init() { } #if RELEASE private(set) var runCallCount = 0 var runArgValues = [Int]() var runHandler: ((Int) -> ())? func run(value: Int) { runCallCount += 1 runArgValues.append(value) if let runHandler = runHandler { runHandler(value) } } private(set) var runValueCallCount = 0 var runValueArgValues = [String]() var runValueHandler: ((String) -> ())? func run(value: String) { runValueCallCount += 1 runValueArgValues.append(value) if let runValueHandler = runValueHandler { runValueHandler(value) } } #endif }

[sidepelican]

This change is good, but it's not perfect.
The same issue will continue to occur with protocols like the following:

/// @mockable
protocol PresentableListener {
    #if DEBUG
    func run(value: Int)
    #endif
    func run(value: Double)
}

But because it makes things better than they are now, I think it is best to merge this change for now.