relates to:

• SR-1772 File-level function with the same name as instance function not picked up by compiler

Issue Description:

This code worked in Swift 3

func log(_ message: String, _ loggedType: Any? = nil) {
    var type: String? = nil
    if let loggedType = loggedType {
        type = "\(type(of: loggedType))"
    }
    
    ///... log the message and type
}

log("this is a log", String.self)

In swift 4 I get the following error on `type(of: loggedType)`

Cannot call value of non-function type 'String?'

It seems as if it things `type(of🙂` is trying to call on the variable `type` that I just declared.