tree 938015b4781753159950547737de12b7e09ed2ac
parent 1097fd8658f74c963a6b9902ceddbaf782cb5177
author Simon Evans <si@si.org> 1516831893 +0000
committer Simon Evans <si@si.org> 1516834139 +0000

ExtraStringAPI: Sync with the overlay version

- The three functions are obsoleted in Swift 4.0. The bodies from
  the overlay wont compile due to use of internal symbols so replace
  with a fatalError() call which isnt used anyway.

- Update callers of advanced(by:) to use index(offsetBy:).