[test] Add AnyObject construction test case
[test] Add AnyObject construction test case

This is a case where a constructor overload choice
might currently have an optional opened type, so
make sure we can handle it. Arguably we shouldn't
even be introducing constructors into the overload
set here though, as it's invalid anyway.

apple/swift,benlangmuir/swift,xwu/swift,roambotics/swift,roambotics/swift,xwu/swift,ahoppen/swift,xwu/swift,JGiola/swift,gregomni/swift,atrick/swift,roambotics/swift,JGiola/swift,benlangmuir/swift,roambotics/swift,gregomni/swift,glessard/swift,ahoppen/swift,ahoppen/swift,apple/swift,gregomni/swift,glessard/swift,rudkx/swift,glessard/swift,gregomni/swift,ahoppen/swift,xwu/swift,rudkx/swift,benlangmuir/swift,glessard/swift,glessard/swift,xwu/swift,ahoppen/swift,roambotics/swift,apple/swift,apple/swift,benlangmuir/swift,rudkx/swift,JGiola/swift,gregomni/swift,benlangmuir/swift,JGiola/swift,atrick/swift,xwu/swift,atrick/swift,rudkx/swift,apple/swift,gregomni/swift,xwu/swift,roambotics/swift,atrick/swift,rudkx/swift,atrick/swift,atrick/swift,rudkx/swift,apple/swift,benlangmuir/swift,ahoppen/swift,JGiola/swift,glessard/swift,JGiola/swift