[Bugfix][AutoMockable.stencil]- inout with multiple parameters & optional any parameter in completion handler

[paul1893]

Context

I noticed 2 bugs in mock generation. If a user have these kind of APIs:

public protocol ProtocolWithMethodWithInoutParameter {
    func execute(param: inout String, bar: Int) // 👈 `inout` parameter in a function that have more that one parameter.
}

protocol FunctionWithNullableCompletionThatHasNullableAnyParameterProtocol {
    func add(
        _ request: Int,
        withCompletionHandler completionHandler: (((any Error)?) -> Void)? // 👈 a completion with an optional that is annotated with `any` keyword.
    )
}

then it will produce:

public var executeParamInoutStringBarIntVoidReceivedArguments: (param: inout String, bar: Int)? // ❌ 'inout' may only be used on parameters
public var executeParamInoutStringBarIntVoidReceivedInvocations: [(param: inout String, bar: Int)] = [] // ❌ 'inout' may only be used on parameters

...

var addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidClosure: ((Int, (((any Error)?) -> Void))?) -> Void)? // ❌ Does not compile because parenthesis syntax is wrong 

func add(_ request: Int, withCompletionHandler completionHandler: (((any Error)?) -> Void))?) { // ❌ Does not compile because parenthesis syntax is wrong
     addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidCallsCount += 1
     addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidClosure?(request, completionHandler)
}

In this PR

I've updated the AutoMockable.stencil to support these 2 identified cases.

now it will produce:

public var executeParamInoutStringBarIntVoidReceivedArguments: (param: String, bar: Int)? // ✅
public var executeParamInoutStringBarIntVoidReceivedInvocations: [(param: String, bar: Int)] = [] // ✅

...
var addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidClosure: ((Int, ((((any Error)?) -> Void))?) -> Void)? // ✅

func add(_ request: Int, withCompletionHandler completionHandler: ((((any Error)?) -> Void))?) { // ✅
    addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidCallsCount += 1
    addRequestIntWithCompletionHandlerCompletionHandlerAnyErrorVoidVoidClosure?(request, completionHandler)
}

[art-divin]

Thanks, great find @paul1893 🤝