[swift-evolution] Mark UnicodeScalar.utf16 and UnicodeScalar.UTF16View as public

[Chris Lattner]

+1, assuming Dave Abrahams agrees.

-Chris

> On Sep 23, 2016, at 6:02 AM, Robert Widmann via swift-evolution <swift-evolution at swift.org> wrote:
> 
> +1.  This is a bug fix in my mind, evolution is merely a formality.
> 
> Ship it
> 
> ~Robert Widmann
> 
> 2016/09/22 18:59、Eli Perkins via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> のメッセージ:
> 
>> Hey all!
>> 
>> I picked up SR-2627 (https://bugs.swift.org/browse/SR-2627 <https://bugs.swift.org/browse/SR-2627>) from the Swift JIRA project. The ticket states:
>> 
>> > UnicodeScalar.utf16 does not have access modifier and therefore is internal but should be public, as well as UnicodeScalar.UTF16View.
>> 
>> The ticket is written in a way that makes it seem as though this change would match the behavior of APIs such as the UTF accessors on `String`.
>> 
>> Additionally, `UnicodeScalar.utf16` and `Unicodescalar.UTF16View` seem to be created in `UnicodeScalar.swift`, but not used elsewhere, indicating that these properties were intended to be exposed to developers as part of the stdlib.
>> 
>> After submitting a pull request to implement this (https://github.com/apple/swift/pull/4929 <https://github.com/apple/swift/pull/4929>, Maxim Moiseev and Michael Gottesman mentioned that since this does modify the public API, a proposal should go through swift-evolution to address this.
>> 
>> I wanted to kick off the discussion here and get feedback from the mailing list.
>> 
>> Looking forward to chatting about this!
>> Eli Perkins
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