SE-0263: Add a String Initializer with Access to Uninitialized Storage

[tkremenek (Ted Kremenek)]

@tkremenek

The proposal has been accepted, with the request that the proposal author revises the API name to include "unsafe". This was brought up during the review discussion, and the Core Team agreed this was an important aspect to include in the API's name.

Phase #2 of the review has resumed on a new thread:

SE-0263 (review #2): Add a String Initializer with Access to Uninitialized Storage

The requested revisions to SE-0263 have been made to the proposal: Please see the updated review proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0263-string-uninitialized-initializer.md The review will resume and continue until October 14 to allow the community to have a chance to discuss the API change.