// Objc header

@import Realm;

@interface Profile : RLMObject
@property NSString *name;
@end

RLM_ARRAY_TYPE(Profile)

@interface Account : RLMObject
@property RLMArray<Profile *><Profile> *profiles;
@end

// generated swift 3 interface

import Realm

open class Profile : RLMObject {

    open var name: String!
}

public protocol ProfileProtocol : NSObjectProtocol {
}

open class Account : RLMObject {

    open var profiles: RLMArray<Profile>!
}

// generated swift 4 interface

import Realm

open class Profile : RLMObject {

    open var name: String!
}

public protocol ProfileProtocol : NSObjectProtocol {
}

open class Account : RLMObject {

    open var profiles: (RLMArray<Profile> & ProfileProtocol)!
}

// Code failing

let account = Account()
let profile = Profile()
profile.name = "bob"
account.profiles.add(profile)
for profile in account.profiles { // Type '(RLMArray<Profile> & ProfileProtocol)!' does not conform to protocol 'Sequence'
    debugPrint(profile)
}