Require parameter names when referencing to functions

Evolution Pitches
66

This example backfires on itself. Let's consider an example that's very close to yours, but without the "objectionable" omission of parameter keywords:

a.map(String.init(_:))

Here's the corresponding list (culled from your greater list):

init(_ c: Character)
init(_ cocoaString: NSString)
init(_ content: Substring.UnicodeScalarView)
init(_ scalar: Unicode.Scalar)
init(_ substring: __shared Substring)
init(_ unicodeScalars: String.UnicodeScalarView)
init(_ utf16: String.UTF16View)
init(_ utf8: String.UTF8View)
init(_ cocoaString: AnyObject)
init(_ sel: Selector)

You can soak in that list too, and realize that the problem you're pointing out is as much about the inscrutability of type inference as it is about the ambiguity of omitting the labels.

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