String Newline Escaping

Description

Make adjustments according to the following implemented Swift 4 proposal.
https://github.com/apple/swift-evolution/blob/master/proposals/0182-newline-escape-in-strings.md

Environment

None

Assignee

Ivan Kochurkin

Reporter

Alex Petuschak

Labels

None

Git Branch Name

None

GitHub Issue

None

Components

Fix versions

Priority

High
Configure