[SR-2477] NumberFormatter.string(for:) only works with NSNumber

[swift-ci]

Previous ID	SR-2477
Radar	None
Original Reporter	vadim (JIRA User)
Type	Task
Status	Closed
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	Foundation
Labels	Task, Linux
Assignee	@pushkarnk
Priority	Medium

md5: 8a45949926d76ca55335b6a0fb493e31

Issue Description:

NumberFormatter.string(for:) does not work with Double, for example.

https://github.com/apple/swift-corelibs-foundation/blob/12f9dd2b8916bb120dff52350ceca54417ebb8ae/Foundation/NSNumberFormatter.swift#L88

guard let number = obj as? NSNumber else { return nil }

[pushkarnk]

A possible fix: #643

[swift-ci]

Comment by Vadim Eisenberg (JIRA)

Verified in swift-3.0.1-RELEASE on Ubuntu 15.