[SR-14248] RelativeDateTimeFormatter missing

[swift-ci]

Previous ID	SR-14248
Radar	rdar://problem/74813891
Original Reporter	ogres (JIRA User)
Type	Bug

Additional Detail from JIRA

Votes	2
Component/s	Foundation
Labels	Bug
Assignee	None
Priority	Medium

md5: 6e364b49676cd40e1005172090ac6f33

Issue Description:

RelativeDateTimeFormatter ( https://developer.apple.com/documentation/foundation/relativedatetimeformatter ) was introduced on Darwin in iOS 13.0/macOS 10.15, however it was not added to open-source Foundation and is not mentioned in https://github.com/apple/swift-corelibs-foundation/blob/main/Docs/Status.md

[typesanitizer]

@swift-ci create

[swift-ci]

Comment by Julian Gentges (JIRA)

Is there any update on this issue?

It would be really helpful to have this formatter on Linux platforms and the docker image.