[SR-13037] some corelibs-foundation URLError convenience accessors don't work

[glessard]

Previous ID	SR-13037
Radar	None
Original Reporter	@glessard
Type	Bug
Status	Closed
Resolution	Done

Attachment: Download

Environment

Ubuntu 18.04

Swift version 5.2.4 (swift-5.2.4-RELEASE)

Additional Detail from JIRA

Votes	0
Component/s	Foundation
Labels	Bug
Assignee	@glessard
Priority	Medium

md5: 57eb840c13458f7b3cb0d95663c2417f

Issue Description:

The `URLError.failingURL` and `URLError.failureURLString` don't work on corelibs-foundation.

let url = URL(string: "https://swift.org")!
let e = URLError(.cancelled, userInfo: [
  NSURLErrorFailingURLErrorKey: url,
  NSURLErrorFailingURLStringErrorKey: url.absoluteString
])

print(e.failingURL?.absoluteString ?? "none")
print(e.failureURLString ?? "none")

print((e.userInfo[NSURLErrorFailingURLErrorKey] as? URL)?.absoluteString ?? "none")
print(e.userInfo[NSURLErrorFailingURLStringErrorKey] as? String ?? "none")

prints:

none
none
https://swift.org
https://swift.org

Needless to say, the output on macOS is "https://swift.org" four times.

[glessard]

Fixed in #2828